diff --git a/Feature1.py b/Feature1.py
deleted file mode 100644
index c2a76ece9263d47a3629586f6def03e775763812..0000000000000000000000000000000000000000
--- a/Feature1.py
+++ /dev/null
@@ -1,32 +0,0 @@
-from abc import ABC, abstractmethod
-import unittest
-
-class IStringCalculator(ABC):
-    @abstractmethod
-    def add(self, numbers: str) -> int:
-        pass
-
-class StringCalculator(IStringCalculator):
-    def add(self, numbers: str) -> int:
-        if not numbers:
-            return 0
-        return sum(map(int, numbers.split(',')))
-
-class TestStringCalculator(unittest.TestCase):
-    def setUp(self):
-        self.calculator = StringCalculator()
-    
-    def test_empty_string(self):
-        self.assertEqual(self.calculator.add(""), 0)
-    
-    def test_single_number(self):
-        self.assertEqual(self.calculator.add("1"), 1)
-    
-    def test_two_numbers(self):
-        self.assertEqual(self.calculator.add("1,2"), 3)
-    
-    def test_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("1,2,3,4,5"), 15)
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/Feature2.py b/Feature2.py
deleted file mode 100644
index 313c83859224784eac53ffb5958c3e0c872ee112..0000000000000000000000000000000000000000
--- a/Feature2.py
+++ /dev/null
@@ -1,41 +0,0 @@
-from abc import ABC, abstractmethod
-import unittest
-
-class IStringCalculator(ABC):
-    @abstractmethod
-    def add(self, numbers: str) -> int:
-        pass
-
-class StringCalculator(IStringCalculator):
-    def add(self, numbers: str) -> int:
-        if not numbers:
-            return 0
-        # Ersetze Zeilenumbrüche durch Kommas und teile die Eingabe nach Kommas
-        numbers = numbers.replace("\n", ",")
-        return sum(map(int, numbers.split(',')))
-
-class TestStringCalculator(unittest.TestCase):
-    def setUp(self):
-        self.calculator = StringCalculator()
-    
-    def test_empty_string(self):
-        self.assertEqual(self.calculator.add(""), 0)
-    
-    def test_single_number(self):
-        self.assertEqual(self.calculator.add("1"), 1)
-    
-    def test_two_numbers(self):
-        self.assertEqual(self.calculator.add("1,2"), 3)
-    
-    def test_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("1,2,3,4,5"), 15)
-    
-    def test_numbers_with_newline(self):
-        self.assertEqual(self.calculator.add("1\n2,3"), 6)
-    
-    def test_numbers_with_multiple_newlines(self):
-        self.assertEqual(self.calculator.add("1\n2\n3\n4\n5"), 15)
-
-if __name__ == "__main__":
-    unittest.main()
-
diff --git a/Feature3.py b/Feature3.py
deleted file mode 100644
index e97fdae58521764c186681c72bcc831a5c676654..0000000000000000000000000000000000000000
--- a/Feature3.py
+++ /dev/null
@@ -1,61 +0,0 @@
-from abc import ABC, abstractmethod
-import unittest
-
-class IStringCalculator(ABC):
-    @abstractmethod
-    def add(self, numbers: str) -> int:
-        pass
-
-class StringCalculator(IStringCalculator):
-    def add(self, numbers: str) -> int:
-        if not numbers:
-            return 0
-        
-        # Ersetze Zeilenumbrüche durch Kommas und teile die Eingabe nach Kommas
-        numbers = numbers.replace("\n", ",")
-        
-        # Splitte die Zahlen und prüfe auf negative Zahlen
-        nums = numbers.split(',')
-        negatives = [num for num in nums if int(num) < 0]
-        
-        if negatives:
-            # Wenn negative Zahlen vorhanden sind, werfe eine Ausnahme
-            raise ValueError(f"Negatives not allowed: {', '.join(negatives)}")
-        
-        # Berechne die Summe der positiven Zahlen
-        return sum(map(int, nums))
-
-class TestStringCalculator(unittest.TestCase):
-    def setUp(self):
-        self.calculator = StringCalculator()
-    
-    def test_empty_string(self):
-        self.assertEqual(self.calculator.add(""), 0)
-    
-    def test_single_number(self):
-        self.assertEqual(self.calculator.add("1"), 1)
-    
-    def test_two_numbers(self):
-        self.assertEqual(self.calculator.add("1,2"), 3)
-    
-    def test_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("1,2,3,4,5"), 15)
-    
-    def test_numbers_with_newline(self):
-        self.assertEqual(self.calculator.add("1\n2,3"), 6)
-    
-    def test_numbers_with_multiple_newlines(self):
-        self.assertEqual(self.calculator.add("1\n2\n3\n4\n5"), 15)
-    
-    def test_negative_number(self):
-        with self.assertRaises(ValueError) as context:
-            self.calculator.add("1,-2,3")
-        self.assertEqual(str(context.exception), "Negatives not allowed: -2")
-    
-    def test_multiple_negative_numbers(self):
-        with self.assertRaises(ValueError) as context:
-            self.calculator.add("1,-2,-3,4")
-        self.assertEqual(str(context.exception), "Negatives not allowed: -2, -3")
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/Feature4.py b/Feature4.py
deleted file mode 100644
index 0a5f7530f0f7134fc3f8806f54246d051172a010..0000000000000000000000000000000000000000
--- a/Feature4.py
+++ /dev/null
@@ -1,80 +0,0 @@
-from abc import ABC, abstractmethod
-import unittest
-
-class IStringCalculator(ABC):
-    @abstractmethod
-    def add(self, numbers: str) -> int:
-        pass
-
-class StringCalculator(IStringCalculator):
-    def add(self, numbers: str) -> int:
-        if not numbers:
-            return 0
-        
-        # Überprüfe, ob ein benutzerdefiniertes Trennzeichen angegeben ist
-        if numbers.startswith("//"):
-            delimiter_line_end = numbers.find("\n")
-            delimiter = numbers[2:delimiter_line_end]  # Extrahiere das Trennzeichen
-            numbers = numbers[delimiter_line_end + 1:]  # Entferne die erste Zeile mit dem Trennzeichen
-            
-        else:
-            delimiter = ','  # Standard-Trennzeichen ist Komma, wenn keine Zeile mit dem Trennzeichen vorhanden ist
-
-        # Ersetze alle Vorkommen des Trennzeichens und teile die Eingabe
-        numbers = numbers.replace("\n", delimiter)
-        nums = numbers.split(delimiter)
-        
-        # Prüfe auf negative Zahlen
-        negatives = [num for num in nums if int(num) < 0]
-        
-        if negatives:
-            # Wenn negative Zahlen vorhanden sind, werfe eine Ausnahme
-            raise ValueError(f"Negatives not allowed: {', '.join(negatives)}")
-        
-        # Berechne die Summe der positiven Zahlen
-        return sum(map(int, nums))
-
-class TestStringCalculator(unittest.TestCase):
-    def setUp(self):
-        self.calculator = StringCalculator()
-    
-    def test_empty_string(self):
-        self.assertEqual(self.calculator.add(""), 0)
-    
-    def test_single_number(self):
-        self.assertEqual(self.calculator.add("1"), 1)
-    
-    def test_two_numbers(self):
-        self.assertEqual(self.calculator.add("1,2"), 3)
-    
-    def test_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("1,2,3,4,5"), 15)
-    
-    def test_numbers_with_newline(self):
-        self.assertEqual(self.calculator.add("1\n2,3"), 6)
-    
-    def test_numbers_with_multiple_newlines(self):
-        self.assertEqual(self.calculator.add("1\n2\n3\n4\n5"), 15)
-    
-    def test_negative_number(self):
-        with self.assertRaises(ValueError) as context:
-            self.calculator.add("1,-2,3")
-        self.assertEqual(str(context.exception), "Negatives not allowed: -2")
-    
-    def test_multiple_negative_numbers(self):
-        with self.assertRaises(ValueError) as context:
-            self.calculator.add("1,-2,-3,4")
-        self.assertEqual(str(context.exception), "Negatives not allowed: -2, -3")
-    
-    def test_custom_delimiter(self):
-        self.assertEqual(self.calculator.add("//;\n1;2"), 3)
-    
-    def test_custom_delimiter_with_newline(self):
-        self.assertEqual(self.calculator.add("//;\n1;2\n3"), 6)
-    
-    def test_custom_delimiter_with_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("//|\n1|2|3|4"), 10)
-
-if __name__ == "__main__":
-    unittest.main()
-
diff --git a/Feature5.py b/Feature5.py
deleted file mode 100644
index 4bb39d4e56abfa1a9bf0d19de26b6dd8a927de04..0000000000000000000000000000000000000000
--- a/Feature5.py
+++ /dev/null
@@ -1,88 +0,0 @@
-from abc import ABC, abstractmethod
-import unittest
-
-class IStringCalculator(ABC):
-    @abstractmethod
-    def add(self, numbers: str) -> int:
-        pass
-
-class StringCalculator(IStringCalculator):
-    def add(self, numbers: str) -> int:
-        if not numbers:
-            return 0
-        
-        # Überprüfe, ob ein benutzerdefiniertes Trennzeichen angegeben ist
-        if numbers.startswith("//"):
-            delimiter_line_end = numbers.find("\n")
-            delimiter = numbers[2:delimiter_line_end]  # Extrahiere das Trennzeichen
-            numbers = numbers[delimiter_line_end + 1:]  # Entferne die erste Zeile mit dem Trennzeichen
-            
-        else:
-            delimiter = ','  # Standard-Trennzeichen ist Komma, wenn keine Zeile mit dem Trennzeichen vorhanden ist
-
-        # Ersetze alle Vorkommen des Trennzeichens und teile die Eingabe
-        numbers = numbers.replace("\n", delimiter)
-        nums = numbers.split(delimiter)
-        
-        # Filtere alle Zahlen, die größer als 1000 sind
-        nums = [int(num) for num in nums if int(num) <= 1000]
-        
-        # Prüfe auf negative Zahlen
-        negatives = [num for num in nums if num < 0]
-        
-        if negatives:
-            # Wenn negative Zahlen vorhanden sind, werfe eine Ausnahme
-            raise ValueError(f"Negatives not allowed: {', '.join(map(str, negatives))}")
-        
-        # Berechne die Summe der Zahlen, die <= 1000 sind
-        return sum(nums)
-
-class TestStringCalculator(unittest.TestCase):
-    def setUp(self):
-        self.calculator = StringCalculator()
-    
-    def test_empty_string(self):
-        self.assertEqual(self.calculator.add(""), 0)
-    
-    def test_single_number(self):
-        self.assertEqual(self.calculator.add("1"), 1)
-    
-    def test_two_numbers(self):
-        self.assertEqual(self.calculator.add("1,2"), 3)
-    
-    def test_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("1,2,3,4,5"), 15)
-    
-    def test_numbers_with_newline(self):
-        self.assertEqual(self.calculator.add("1\n2,3"), 6)
-    
-    def test_numbers_with_multiple_newlines(self):
-        self.assertEqual(self.calculator.add("1\n2\n3\n4\n5"), 15)
-    
-    def test_negative_number(self):
-        with self.assertRaises(ValueError) as context:
-            self.calculator.add("1,-2,3")
-        self.assertEqual(str(context.exception), "Negatives not allowed: -2")
-    
-    def test_multiple_negative_numbers(self):
-        with self.assertRaises(ValueError) as context:
-            self.calculator.add("1,-2,-3,4")
-        self.assertEqual(str(context.exception), "Negatives not allowed: -2, -3")
-    
-    def test_custom_delimiter(self):
-        self.assertEqual(self.calculator.add("//;\n1;2"), 3)
-    
-    def test_custom_delimiter_with_newline(self):
-        self.assertEqual(self.calculator.add("//;\n1;2\n3"), 6)
-    
-    def test_custom_delimiter_with_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("//|\n1|2|3|4"), 10)
-    
-    def test_numbers_greater_than_1000(self):
-        self.assertEqual(self.calculator.add("2,1001"), 2)
-    
-    def test_numbers_greater_than_1000_with_custom_delimiter(self):
-        self.assertEqual(self.calculator.add("//;\n2;1001"), 2)
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/Feature6.py b/Feature6.py
deleted file mode 100644
index 0f35297ebc07e1bd3d13bb70713f3ecbe5b9f33a..0000000000000000000000000000000000000000
--- a/Feature6.py
+++ /dev/null
@@ -1,94 +0,0 @@
-from abc import ABC, abstractmethod
-import unittest
-
-class IStringCalculator(ABC):
-    @abstractmethod
-    def add(self, numbers: str) -> int:
-        pass
-
-class StringCalculator(IStringCalculator):
-    def add(self, numbers: str) -> int:
-        if not numbers:
-            return 0
-        
-        # Überprüfe, ob ein benutzerdefiniertes Trennzeichen angegeben ist
-        if numbers.startswith("//"):
-            delimiter_line_end = numbers.find("\n")
-            delimiter = numbers[2:delimiter_line_end]  # Extrahiere das Trennzeichen
-            numbers = numbers[delimiter_line_end + 1:]  # Entferne die erste Zeile mit dem Trennzeichen
-            
-        else:
-            delimiter = ','  # Standard-Trennzeichen ist Komma, wenn keine Zeile mit dem Trennzeichen vorhanden ist
-
-        # Ersetze alle Vorkommen des Trennzeichens und teile die Eingabe
-        numbers = numbers.replace("\n", delimiter)
-        nums = numbers.split(delimiter)
-        
-        # Filtere alle Zahlen, die größer als 1000 sind
-        nums = [int(num) for num in nums if int(num) <= 1000]
-        
-        # Prüfe auf negative Zahlen
-        negatives = [num for num in nums if num < 0]
-        
-        if negatives:
-            # Wenn negative Zahlen vorhanden sind, werfe eine Ausnahme
-            raise ValueError(f"Negatives not allowed: {', '.join(map(str, negatives))}")
-        
-        # Berechne die Summe der Zahlen, die <= 1000 sind
-        return sum(nums)
-
-class TestStringCalculator(unittest.TestCase):
-    def setUp(self):
-        self.calculator = StringCalculator()
-    
-    def test_empty_string(self):
-        self.assertEqual(self.calculator.add(""), 0)
-    
-    def test_single_number(self):
-        self.assertEqual(self.calculator.add("1"), 1)
-    
-    def test_two_numbers(self):
-        self.assertEqual(self.calculator.add("1,2"), 3)
-    
-    def test_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("1,2,3,4,5"), 15)
-    
-    def test_numbers_with_newline(self):
-        self.assertEqual(self.calculator.add("1\n2,3"), 6)
-    
-    def test_numbers_with_multiple_newlines(self):
-        self.assertEqual(self.calculator.add("1\n2\n3\n4\n5"), 15)
-    
-    def test_negative_number(self):
-        with self.assertRaises(ValueError) as context:
-            self.calculator.add("1,-2,3")
-        self.assertEqual(str(context.exception), "Negatives not allowed: -2")
-    
-    def test_multiple_negative_numbers(self):
-        with self.assertRaises(ValueError) as context:
-            self.calculator.add("1,-2,-3,4")
-        self.assertEqual(str(context.exception), "Negatives not allowed: -2, -3")
-    
-    def test_custom_delimiter(self):
-        self.assertEqual(self.calculator.add("//;\n1;2"), 3)
-    
-    def test_custom_delimiter_with_newline(self):
-        self.assertEqual(self.calculator.add("//;\n1;2\n3"), 6)
-    
-    def test_custom_delimiter_with_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("//|\n1|2|3|4"), 10)
-    
-    def test_numbers_greater_than_1000(self):
-        self.assertEqual(self.calculator.add("2,1001"), 2)
-    
-    def test_numbers_greater_than_1000_with_custom_delimiter(self):
-        self.assertEqual(self.calculator.add("//;\n2;1001"), 2)
-    
-    def test_long_delimiter(self):
-        self.assertEqual(self.calculator.add("//[***]\n1***2***3"), 6)
-    
-    def test_long_delimiter_with_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("//[---]\n1---2---3---4"), 10)
-
-if __name__ == "__main__":
-    unittest.main()
\ No newline at end of file
diff --git a/other/student1/Calculator.py b/other/student1/Calculator.py
deleted file mode 100644
index ddc60c6109f967411472c4925d9d525eed3cc3f5..0000000000000000000000000000000000000000
--- a/other/student1/Calculator.py
+++ /dev/null
@@ -1,152 +0,0 @@
-import unittest
-from abc import ABC, abstractmethod #Daniel Rafeh
-
-
-class IStringCalculator(ABC):
-    @abstractmethod
-    def add(self, numbers: str) -> int: 
-        pass
-
-class StringCalculator(IStringCalculator):
-    def add(self, numbers: str) -> int: 
-
-        '''Leere Eingabe soll 0 ausgeben'''
-        if numbers == "":
-            return 0
-        
-        '''Standard-Trennzeichen'''
-        delimiter = ";"
-        
-        '''Es wird geprüft ob ein benutzerdefiniertes Trennzeichen vorhanden ist.'''
-        if numbers.startswith("//"):
-            sep = numbers.split("\n", 1) 
-            delimiter_sep = sep[0][2:]
-
-            '''Für den Fall, dass das Trennzeichen in eckigen Klammern steht werden die Klammern entfernt und das Trennzeichen gespeichert'''
-            if delimiter_sep.startswith("[") and delimiter_sep.endswith("]"):
-                delimiter = delimiter_sep[1:-1]
-
-            else:
-                delimiter = delimiter_sep[0]
-
-            '''Entfernen der ersten Zeile, damit nur noch Zahlen übrig bleiben'''
-            numbers = sep[1]
-
-        '''Ersetzen von Zeilenumbrüchen mit Delimiter und ersetzen von Delimiter durch ",", um splitten zu können'''
-        numbers = numbers.replace("\n", delimiter).replace(delimiter, ",")
-
-        list = numbers.split(",")
-        result = 0
-        
-        negative_numbers = []
-
-        for num in list:
-            num = num.strip()
-            if num == "":
-                continue
-
-            '''Sicherstellen dass Floats nicht berücksichtigt werden'''
-            if "." in num:
-                return "only integers allowed"
-            
-            '''Sicherstellen, dass keine Buchstaben verwendet werden dürfen'''
-            try:
-                number = int(num)
-            except ValueError:
-                return "only integers allowed"
-
-            '''Konvertirung von Strings zu Integer'''
-            if number < 0:
-                negative_numbers.append(number)
-            
-            if number > 1000:
-                continue
-        
-            result += number
-        
-        if len(negative_numbers) > 1:
-            return "negatives not allowed " + str(negative_numbers)
-        elif negative_numbers:
-            return "negatives not allowed"
-
-        return result
-        
-
-class TestStringCalculator(unittest.TestCase):
-    def setUp(self):
-        self.c = StringCalculator()
-
-    def test_empty(self):
-        res = self.c.add("")
-        self.assertEqual(res, 0)
-
-    def test_oneNumber(self):
-        res = self.c.add("1")
-        self.assertEqual(res, 1)
-    
-    def test_addingTwoNumbers(self):
-        res = self.c.add("1,2")
-        self.assertEqual(res, 3)
-
-    def test_addingTwoNumbersWithZero(self):
-        res = self.c.add("0,5")
-        self.assertEqual(res, 5)
-
-    def test_handleFloat(self):
-        res = self.c.add("3.5")
-        self.assertEqual(res, "only integers allowed")
-
-    def test_handleLetter(self):
-        res = self.c.add("1, z")
-        self.assertEqual(res, "only integers allowed")
-
-    def test_addWithBackslashN(self):
-        res = self.c.add("1\n2,3")
-        self.assertEqual(res, 6)
-
-    def test_negativeValues(self):
-        res = self.c.add("-3")
-        self.assertEqual(res, "negatives not allowed")
-
-    def test_delimiter(self):
-        res = self.c.add("//;\n1;2")
-        self.assertEqual(res, 3)
-
-    def test_thousandone(self):
-        res = self.c.add("2, 1001")
-        self.assertEqual(res, 2)
-
-    def test_multidelimiter(self):
-        res = self.c.add("//[***]\n1***2***3")
-        self.assertEqual(res, 6)
-
-    def test_multi_negative(self):
-        res = self.c.add("-3, -4")
-        self.assertEqual(res, "negatives not allowed " + str([-3, -4]))
-
-    def test_space_between_numbers(self):
-        res = self.c.add(" 4  , 5")
-        self.assertEqual(res, 9)
-
-    def test_multiple_num_with_thousandone(self):
-        res = self.c.add(" 2, 1001, 5")
-        self.assertEqual(res, 7)
-
-    def test_empty_text(self):
-        res = self.c.add("//;\n")
-        self.assertEqual(res, 0)
-
-    def test_one_number_with_empty_string(self):
-        res = self.c.add("1,")
-        self.assertEqual(res, 1)
-
-    def test_negative_with_positive(self):
-        res = self.c.add("-2, 5")
-        self.assertEqual(res, "negatives not allowed")
-
-    def test_mixture(self):
-        res = self.c.add("//;\n-1;2;1001;-3")
-        self.assertEqual(res, "negatives not allowed " + str([-1, -3]))
-
-if __name__ == "__main__":
-    unittest.main()
\ No newline at end of file
diff --git a/other/student1/__pycache__/Calculator.cpython-313.pyc b/other/student1/__pycache__/Calculator.cpython-313.pyc
deleted file mode 100644
index e4e08953a9e4aefe974df4cc26c82e769f8ca559..0000000000000000000000000000000000000000
Binary files a/other/student1/__pycache__/Calculator.cpython-313.pyc and /dev/null differ
diff --git a/other/student2/Calculator.py b/other/student2/Calculator.py
deleted file mode 100644
index 05449ba13777deed95d5ac179974bdaa67a429e6..0000000000000000000000000000000000000000
--- a/other/student2/Calculator.py
+++ /dev/null
@@ -1,97 +0,0 @@
-import unittest
-from abc import ABC, abstractmethod #Wasili
-
-#Interface für StringCalculator
-class IStringCalculator(ABC):
-    @abstractmethod
-    def add(self, numbers:str) -> int:
-        pass
-
-#Implementierung der Calculator Klasse
-class StringCalculator(IStringCalculator):
-    def add(self, numbers:str) -> int:
-        if numbers == "":
-            return 0
-        
-        #Prüfen, ob ein benutzerdefiniertes Trennzeichen definiert wurde
-
-        if numbers.startswith("//"):
-            delimiter_end_index = numbers.index("\n") #Zeilenumbruchs Position finden
-            delimiter = numbers[2:delimiter_end_index] # Trennzeichen, also alles zwischen "//" und "\n" extrahieren
-
-            if delimiter.startswith("[") and delimiter.endswith("]"):
-                delimiter = delimiter[1:-1] # "[" und "]" entfernen
-
-            numbers = numbers[delimiter_end_index + 1:] #Zahlen nach "\n" extrahieren
-            numbers = numbers.replace(delimiter,",") #Benutzerdefiniertes Trennzeichen durch "," ersetzen
-
-        #Zeilenumbrüche ebenfals durch "," ersetzen
-        numbers = numbers.replace("\n",",")
-
-        # String anhand von Kommas splitten, eine Liste der einzelnen Zahlen(in str) erzeugen und in Int umwandeln -> Ergebnis wäre z.B. bei add("1\n2,3,4") -> [1,2,3,4]
-        num_list = list(map(int, numbers.split(",",)))
-
-        #Prüfung auf negative Zahlen
-        negatives = [n for n in num_list if n<0]
-        if negatives:
-            raise ValueError(f"negatives not allowed: {','.join(map(str, negatives))}") #Alle negativen Zahlen durch Kommas in getrennte Strings darstellen
-        
-        #Zahlen größer als 1000 aus Liste entfernen
-        num_list = [n for n in num_list if n <= 1000]
-
-        return sum(num_list) #Summe berechnen (bei einer Zahln wird immernoch dieselbe Zahl ausgegeben)
-    
-
-#mplementierung der Testklasse für StringCalculator
-class TestStringCalculator(unittest.TestCase):
-    def test_add_empty(self):
-        c = StringCalculator()
-        self.assertEqual(c.add(""), 0)
-
-    def test_add_one_string(self):
-        c = StringCalculator()
-        self.assertEqual(c.add("1"), 1)
-
-    def test_add_two_string(self):
-        c = StringCalculator()
-        self.assertEqual(c.add("1,2"), 3)
-
-    def test_add_multiple_string(self):
-        c = StringCalculator()
-        self.assertEqual(c.add("1,2,3,4,5,6,7"), 28)
-
-    def test_add_new_lines(self):
-        c = StringCalculator()
-        self.assertEqual(c.add("1\n2,3,4"), 10)
-
-    def test_add_exception(self):
-        c = StringCalculator()
-        with self.assertRaises(ValueError) as context:
-            c.add("-5")
-        self.assertEqual(str(context.exception), "negatives not allowed: -5")
-
-    def test_add_negative_numbers(self):
-        c = StringCalculator()
-        with self.assertRaises(ValueError) as context:
-            c.add("-5,-2,-2")
-        self.assertEqual(str(context.exception), "negatives not allowed: -5,-2,-2")
-
-    def test_add_different_delimiters(self):
-        c = StringCalculator()
-        self.assertEqual(c.add("//;\n1;2"), 3)
-
-    def test_add_numbers_greater_than_1000(self):
-        c = StringCalculator()
-        self.assertEqual(c.add("2,1001"),2)
-        self.assertEqual(c.add("2,10022\n6"),8)
-
-    def test_delimiters_of_any_length(self):
-        c = StringCalculator()
-        self.assertEqual(c.add("//[***]\n1***2***3"), 6)
-    
-    def test_delimiters_of_any_length2(self):
-        c = StringCalculator()
-        self.assertEqual(c.add("//[*+*+*]\n1*+*+*2*+*+*3*+*+*220"), 226)
-
-if __name__ == "__main__":
-    unittest.main()
\ No newline at end of file
diff --git a/other/student2/__pycache__/Calculator.cpython-313.pyc b/other/student2/__pycache__/Calculator.cpython-313.pyc
deleted file mode 100644
index b8ea3ae8c73d007501c8384c94b321840b9e2cad..0000000000000000000000000000000000000000
Binary files a/other/student2/__pycache__/Calculator.cpython-313.pyc and /dev/null differ
diff --git a/other/student3/Calculator.py b/other/student3/Calculator.py
deleted file mode 100644
index e91cd9e91207445dc9afb27a560644ad20fc47c4..0000000000000000000000000000000000000000
--- a/other/student3/Calculator.py
+++ /dev/null
@@ -1,109 +0,0 @@
-import unittest
-import re  #Momo
-
-class StringCalculator:
-    def __init__(self):
-        self.called_count = 0
-    def add (self, numbers : str)-> int: #Erwartet Integer
-        if not numbers:
-            return 0
-        
-        if numbers.startswith("//"):
-            delimiter_end_index = numbers.index("\n")
-            delimiter_section = numbers[2:delimiter_end_index]
-            numbers = numbers[delimiter_end_index +1:]
-            
-            if delimiter_section.startswith("[")and delimiter_section.endswith("]"):
-                delimiters = re.findall(r'\[([^\]]+)\]',delimiter_section)
-            else:
-                delimiters= [delimiter_section]
-
-            for delimiters in delimiters:
-                numbers = numbers.replace(delimiters,",")
-
-        numbers = numbers.replace("\n",",")
-            
-        number_list = numbers.split(',')#aufteilung der strings
-        negative = [] #array für die negativen nummern
-        numbers_to_add = []
-            #total_sum = 0
-        for number_str in number_list: #jedes element in der liste wird durch genommen
-                #if number_str:
-            number = int(number_str)# summierung der integer
-            if number <0:
-                negative.append(number)
-            elif number > 1000:
-                continue
-            else:
-                numbers_to_add.append(number)
-                    #total_sum += number
-
-        if negative:
-            print(f"Negative Zahlen:{negative} ")#ausgabe negative zahlen
-            raise ValueError(f"negatives not allowed: {','.join(map(str, negative))}")
-        self.called_count += 1
-        return sum(numbers_to_add)
-    def get_called_count(self):
-        return self.called_count
-        
-    
-class TestStingCalculator(unittest.TestCase):
-    def setUp(self):
-        self.calculator = StringCalculator()     
-    def test_empty_string(self):
-        self.assertEqual(self.calculator.add(""), 0) #leerer string + 0
-    def test_single_number(self):
-        self.assertEqual(self.calculator.add("5"),5) #eingabe von einem String
-    def test_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("5,5"),10)#eingabe mehrere strings
-    def test_unknowen_amount_of_numbers(self):
-        self.assertEqual(self.calculator.add("1,2,3"),6)
-        self.assertEqual(self.calculator.add("10,20,30,40"),100)
-        self.assertEqual(self.calculator.add("1,2,3,4,5,6"),21)
-    def test_numbers_seperated_by_newline(self):
-        self.assertEqual(self.calculator.add("1\n2"),3)
-        self.assertEqual(self.calculator.add("1\n2\n3"),6)
-        self.assertEqual(self.calculator.add("10,20\n30"),60)
-
-    def test_negative_number_exception(self):
-
-        with self.assertRaises(ValueError) as e:
-            self.calculator.add("-1,2")
-        self.assertEqual(str(e.exception), "negatives not allowed: -1")
-    def test_multiple_negative_numbers_exception(self):
-        with self.assertRaises(ValueError)as e:
-            self.calculator.add("-1,-2,3")
-        self.assertEqual(str(e.exception),"negatives not allowed: -1,-2")
-        with self.assertRaises(ValueError) as e:
-            self.calculator.add("-1,-3,4")
-        self.assertEqual(str(e.exception),"negatives not allowed: -1,-3")
-
-        with self.assertRaises(ValueError) as e:
-            self.calculator.add("-1\n-3,4")
-        self.assertEqual(str(e.exception),"negatives not allowed: -1,-3")
-    def test_add_numbers_with_custom_delimiter(self):
-        self.assertEqual(self.calculator.add("//;\n1;2;3"),6)
-        self.assertEqual(self.calculator.add("//;\n1,2,3"),6)
-        with self.assertRaises(ValueError) as e:
-            self.calculator.add("//;\n-3,4")
-        self.assertEqual(str(e.exception),"negatives not allowed: -3")
-    
-    def test_add_numbers_greater_than_1000(self):
-        self.assertEqual(self.calculator.add("1,1001,2,3"),6)
-    def test_add_numbers_greater_than_1000_1002(self):
-        self.assertEqual(self.calculator.add("1002,1,2,3"),6)
-    def test_add_numbers_greater_1000_and_minus(self):
-        with self.assertRaises(ValueError) as e:
-            self.calculator.add("//;\n-3,4;1001")
-        self.assertEqual(str(e.exception),"negatives not allowed: -3")
-    def test_custom_delimiter(self):
-        self.assertEqual(self.calculator.add("//[***]\n1***2***3"),6)
-    def test_custom_del(self):
-        self.assertEqual(self.calculator.add("//[+++]\n1+++2+++3"),6)
-    def test_custom_del2(self):
-        self.assertEqual(self.calculator.add("//[aa]\n1aa2aa3"),6)
-        
-        
-
-if __name__=='__main__':
-    unittest.main()
\ No newline at end of file
diff --git a/other/student3/__pycache__/Calculator.cpython-313.pyc b/other/student3/__pycache__/Calculator.cpython-313.pyc
deleted file mode 100644
index 1394af73c7b584d4b136e8c64570dba56c2e12b0..0000000000000000000000000000000000000000
Binary files a/other/student3/__pycache__/Calculator.cpython-313.pyc and /dev/null differ
diff --git a/other/student4/Calculator.py b/other/student4/Calculator.py
deleted file mode 100644
index e38e25f62cafc2656eb8bebf8590503fa59bce1f..0000000000000000000000000000000000000000
--- a/other/student4/Calculator.py
+++ /dev/null
@@ -1,127 +0,0 @@
-import re 
-import unittest #Marvin
-
-class StringCalculator:
-    def add(self, numbers: str) -> int:
-        # Feature 1: Leerer String ergibt 0
-        if not numbers:
-            return 0
-        
-        
-
-        # Vorbereitung für weiter features 
-        delimiters = [",", "\n"]
-        if numbers.startswith("//"):
-            delimiter_end_index = numbers.index("\n")
-            delimiter_section = numbers[2:delimiter_end_index]
-            numbers = numbers[delimiter_end_index + 1:]
-
-         # Feature 7: Delimiter beliebiger Länge im Format //[***]
-            if delimiter_section.startswith("[") and delimiter_section.endswith("]"):
-                delimiter = re.escape(delimiter_section[1:-1])
-            else:
-                delimiter = re.escape(delimiter_section)
-
-            delimiters.append(delimiter)
-
-        # Feature 3: Erlaube Zeilenumbrüche als Trenner
-        split_pattern = "|".join(delimiters)
-        number_list = re.split(split_pattern, numbers)
-
-
-        
-
-        # Feature 4: Negativzahlen abfangen
-        negatives = []
-        for num in number_list:
-            if num.strip() != "":
-                value = int(num)
-                if value < 0:
-                    negatives.append(value)
-
-        # Exception bei negativen Zahlen
-        if negatives:
-            raise ValueError(f"Negative numbers are not allowed: {', '.join(map(str, negatives))}")
-
-        # Feature 2: Beliebig viele Zahlen summieren
-        return sum(int(n) for n in number_list if n.strip() != "" and int(n) <= 1000)
-
-
-
-class TestStringCalculator(unittest.TestCase):
-    """Test suite for the StringCalculator class."""
-
-    def setUp(self):
-        """neue Instanz des StringCalculators vor jedem Test"""
-        self.calculator = StringCalculator()
-
-    def test_empty_string_returns_zero(self):
-        """Feature 1: Leerer String soll 0 ergeben"""
-        self.assertEqual(self.calculator.add(""), 0)
-
-    def test_single_number_returns_value(self):
-        """Ein einzelner Wert soll zurückgegeben werden"""
-        self.assertEqual(self.calculator.add("1"), 1)
-
-    def test_two_numbers_return_sum(self):
-        """Zwei Zahlen sollen summiert werden"""
-        self.assertEqual(self.calculator.add("1,2"), 3)
-
-    def test_add_multiple_numbers(self):
-        """Feature 2: Mehrere Zahlen summieren"""
-        self.assertEqual(self.calculator.add("1,2,3,4,5"), 15)
-
-    def test_add_numbers_with_newlines(self):
-        """Feature 3: Zeilenumbrüche als Trennzeichen"""
-        self.assertEqual(self.calculator.add("1\n2\n3"), 6)
-
-    def test_add_negative_numbers(self):
-        """Feature 4: Negative Zahlen sollen Fehler werfen"""
-        with self.assertRaises(ValueError) as e:
-            self.calculator.add("-1,2,-3")
-        self.assertEqual(str(e.exception), "Negative numbers are not allowed: -1, -3")
-
-    def test_add_numbers_with_custom_delimiter(self):
-        """Feature 5: Benutzerdefiniertes Trennzeichen"""
-        self.assertEqual(self.calculator.add("//;\n1;2;3"), 6)    
-
-    def test_add_numbers_with_custom_delimiter_different_symbol(self):
-        """Feature 5: Benutzerdefiniertes Trennzeichen mit anderem Symbol"""
-        self.assertEqual(self.calculator.add("//#\n4#5#6"), 15)
-
-    def test_custom_delimiter_with_multiple_numbers(self):
-        """
-        Kombinierter Test für:
-        feature 5 und feature 2
-        Erwartet wird die korrekte Addition von sechs durch ein benutzerdefiniertes Zeichen getrennten Zahlen.
-        """
-        self.assertEqual(self.calculator.add("//:\n1:2:3:4:5:6"), 21)    
-
-    def test_add_numbers_greater_than_1000(self):
-        """Feature6 test"""
-        self.assertEqual(self.calculator.add("1,1001,2,3"), 6)
-
-    def test_add_numbers_with_newlines_and_ignore_above_1000(self):
-        """Feature 3 und 6 test Zeilenumbruch als trenner, Zahlen>1000 ignorieren"""
-        self.assertEqual(self.calculator.add("1\n2\n1000\n1001"), 1003)
-    
-    def test_add_numbers_with_custom_delimiter_long_length(self):
-        """Benutzerdefinierte Trennzeichen beliebig lang """
-        self.assertEqual(self.calculator.add("//[***]\n1***2***3"), 6)
-
-    def test_custom_long_delimiter_with_large_number_ignored(self):
-        """FEature 6 und 7 test Benutzerdefinierte Delimiter Länge und zahl über 1000 wird ignoriert"""
-        self.assertEqual(self.calculator.add("//[***]\n1***1001***2"), 3) 
-        
-    def test_custom_long_delimiter_with_negative_numbers(self):
-        """Feature 4 und 7: Benutzerdefinierter Delimiter beliebiger Länge + negative Zahlen"""
-        with self.assertRaises(ValueError) as e:
-             self.calculator.add("//[***]\n1***-2***3***-4")
-        self.assertEqual(str(e.exception), "Negative numbers are not allowed: -2, -4")
-    
-    
-
-
-
-if __name__ == '__main__':
-    unittest.main()
diff --git a/other/student4/__pycache__/Calculator.cpython-313.pyc b/other/student4/__pycache__/Calculator.cpython-313.pyc
deleted file mode 100644
index 12e1f492b290095e043cc3c3bafdf28c08c709b5..0000000000000000000000000000000000000000
Binary files a/other/student4/__pycache__/Calculator.cpython-313.pyc and /dev/null differ
diff --git a/other/student5/Calculator_combined.py b/other/student5/Calculator_combined.py
deleted file mode 100644
index 09214d2b017291bee4f86a23882b161d83392bd8..0000000000000000000000000000000000000000
--- a/other/student5/Calculator_combined.py
+++ /dev/null
@@ -1,96 +0,0 @@
-from abc import ABC, abstractmethod
-import unittest #Orlandos test kombiniert aus 2 dateien,da fehlerhafte meldung mit scr hat anders nicht geklappt 
-
-
-class IStringCalculator(ABC):
-    @abstractmethod
-    def add(self, numbers: str) -> int:
-        pass
-
-
-class StringCalculator(IStringCalculator):
-    def add(self, numbers: str) -> int:
-        if not numbers:
-            return 0
-
-        delimiter = ","
-
-        if numbers.startswith("//"):
-            header, numbers = numbers.split("\n", 1)
-
-            if header.startswith("//[") and header.endswith("]"):
-                delimiter = header[3:-1]
-            else:
-                delimiter = header[2:]
-
-        numbers = numbers.replace("\n", ",")
-        numbers = numbers.replace(delimiter, ",")
-
-        number_list = numbers.split(",")
-        cleaned_numbers = [
-            int(n.strip()) for n in number_list if n.strip() != ""
-        ]
-
-        negatives = [n for n in cleaned_numbers if n < 0]
-        if negatives:
-            raise ValueError(f"negatives not allowed: {', '.join(map(str, negatives))}")
-
-        cleaned_numbers = [n for n in cleaned_numbers if n <= 1000]
-
-        return sum(cleaned_numbers)
-
-# --- TESTS ---
-class TestStringCalculator(unittest.TestCase):
-    def setUp(self):
-        self.calc = StringCalculator()
-
-    def test_add_empty_string(self):
-        self.assertEqual(self.calc.add(""), 0)
-
-    def test_add_single_number(self):
-        self.assertEqual(self.calc.add("1"), 1)
-
-    def test_add_two_numbers(self):
-        self.assertEqual(self.calc.add("1,2"), 3)
-
-    def test_add_multiple_numbers(self):
-        self.assertEqual(self.calc.add("1,2,3,4,5"), 15)
-
-    def test_add_ignores_empty_entries(self):
-        self.assertEqual(self.calc.add("1,,2"), 3)
-        self.assertEqual(self.calc.add("1, ,2"), 3)
-        self.assertEqual(self.calc.add(",,1,,2,,,"), 3)
-
-    def test_add_with_newlines(self):
-        self.assertEqual(self.calc.add("1\n2,3"), 6)
-        self.assertEqual(self.calc.add("1,2\n3"), 6)
-        self.assertEqual(self.calc.add("1\n2\n3"), 6)
-
-    def test_negative_number(self):
-        with self.assertRaises(ValueError) as context:
-            self.calc.add("1,-2")
-        self.assertIn("negatives not allowed: -2", str(context.exception))
-
-    def test_multiple_negative_numbers(self):
-        with self.assertRaises(ValueError) as context:
-            self.calc.add("-1,-2,3")
-        self.assertIn("negatives not allowed: -1, -2", str(context.exception))
-
-    def test_custom_delimiter(self):
-        self.assertEqual(self.calc.add("//;\n1;2"), 3)
-        self.assertEqual(self.calc.add("//|\n4|5|6"), 15)
-        self.assertEqual(self.calc.add("//_\n7_8_9"), 24)
-
-    def test_ignores_large_numbers(self):
-        self.assertEqual(self.calc.add("2,1001"), 2)
-        self.assertEqual(self.calc.add("1000,1"), 1001)
-        self.assertEqual(self.calc.add("1234,1001,3"), 3)
-
-    def test_multi_char_delimiter(self):
-        self.assertEqual(self.calc.add("//[***]\n1***2***3"), 6)
-        self.assertEqual(self.calc.add("//[abc]\n4abc5abc6"), 15)
-        self.assertEqual(self.calc.add("//[+]\n1+2+3"), 6)
-
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/other/student5/__pycache__/Calculator_combined.cpython-313.pyc b/other/student5/__pycache__/Calculator_combined.cpython-313.pyc
deleted file mode 100644
index 58da210273e9ccdba83d4985845021ab109a6672..0000000000000000000000000000000000000000
Binary files a/other/student5/__pycache__/Calculator_combined.cpython-313.pyc and /dev/null differ
diff --git a/other/student6/Calculator_combined.py b/other/student6/Calculator_combined.py
deleted file mode 100644
index 35f45319f4da9fd72eda87969d43ecc310165132..0000000000000000000000000000000000000000
--- a/other/student6/Calculator_combined.py
+++ /dev/null
@@ -1,97 +0,0 @@
-from abc import ABC, abstractmethod
-import re
-import unittest
-
-
-class IStringCalculator(ABC):
-    @abstractmethod
-    def add(self, numbers: str) -> int:
-        pass
-
-
-
-class StringCalculator(IStringCalculator):
-    def add(self, numbers: str) -> int:
-        if not numbers:
-            return 0
-
-        if numbers.startswith("//"):
-            if "\n" not in numbers:
-                raise ValueError("Ungültiges Format: Nicht vollständig")
-            delimiter_end_index = numbers.index("\n")
-            delimiter_part = numbers[2:delimiter_end_index]
-            if delimiter_part.startswith("[") and delimiter_part.endswith("]"):
-                delimiter = delimiter_part[1:-1]
-            else:
-                delimiter = delimiter_part
-            numbers = numbers[delimiter_end_index + 1:]
-            numbers = numbers.replace(delimiter, ",")
-
-        numbers = numbers.replace("\n", ",")
-
-        # Split the string by commas, convert each value to an integer, and sum them up
-        try:
-            numbers_list = list(map(int, numbers.split(",")))
-        except ValueError:
-            raise ValueError("Ungültiges Zahlenformat: Enthält nicht-numerische Werte")
-
-        negative_numbers = [num for num in numbers_list if num < 0]
-        if negative_numbers:
-            raise ValueError(f"Negative nicht erlaubt: {negative_numbers}")
-
-        numbers_list = [num for num in numbers_list if num <= 1000]
-
-        return sum(numbers_list)
-
-
-class TestStringCalculator(unittest.TestCase):
-    def setUp(self):
-        self.calculator: IStringCalculator = StringCalculator()  # Zugriff über das Interface
-
-    def test_add_empty_string(self):
-        self.assertEqual(self.calculator.add(""), 0)
-
-    def test_add_single_number(self):
-        self.assertEqual(self.calculator.add("1"), 1)
-
-    def test_add_two_numbers(self):
-        self.assertEqual(self.calculator.add("10,20"), 30)
-
-    def test_add_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("1,2,3"), 6)
-        self.assertEqual(self.calculator.add("10,20,30,40"), 100)
-
-    def test_add_with_newline_separator(self):
-        self.assertEqual(self.calculator.add("1\n2,3"), 6)
-        self.assertEqual(self.calculator.add("10\n20\n30"), 60)
-
-    def test_add_single_negative_number(self):
-        with self.assertRaises(ValueError) as context:
-            self.calculator.add("1,-2,3")
-        self.assertEqual(str(context.exception), "Negative nicht erlaubt: [-2]")
-
-    def test_add_multiple_negative_numbers(self):
-        with self.assertRaises(ValueError) as context:
-            self.calculator.add("-10\n-20,-30")
-        self.assertEqual(str(context.exception), "Negative nicht erlaubt: [-10, -20, -30]")
-
-    def test_add_with_custom_delimiter(self):
-        self.assertEqual(self.calculator.add("//;\n1;2"), 3)
-        self.assertEqual(self.calculator.add("//x\n7x8\n9"), 24)
-
-    def test_invalid_custom_delimiter_format(self):
-        with self.assertRaises(ValueError) as context:
-            self.calculator.add("//;1;2")
-        self.assertTrue("Ungültiges Format" in str(context.exception))
-
-    def test_ignore_numbers_greater_than_1000(self):
-        self.assertEqual(self.calculator.add("2,1001"), 2)
-        self.assertEqual(self.calculator.add("1002,50200"), 0)
-
-    def test_add_with_custom_delimiter_multiple_characters(self):
-        self.assertEqual(self.calculator.add("//[**]\n1**2**3"), 6)
-        self.assertEqual(self.calculator.add("//[###]\n10###20###30"), 60)
-
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/other/student6/__pycache__/Calculator_combined.cpython-313.pyc b/other/student6/__pycache__/Calculator_combined.cpython-313.pyc
deleted file mode 100644
index 63f3b5d384042ba48f47a641fd4dd097ec8a0620..0000000000000000000000000000000000000000
Binary files a/other/student6/__pycache__/Calculator_combined.cpython-313.pyc and /dev/null differ
diff --git a/other/student7/Calculator.py b/other/student7/Calculator.py
deleted file mode 100644
index b525ef2bd0ccd7b507162be34c93ebd9e6c78a55..0000000000000000000000000000000000000000
--- a/other/student7/Calculator.py
+++ /dev/null
@@ -1,88 +0,0 @@
-from abc import ABC, abstractmethod
-import unittest
-
-class IStringCalculator(ABC):
-    @abstractmethod
-    def add(self, numbers: str) -> int:
-        pass
-
-class StringCalculator(IStringCalculator):
-    def add(self, numbers: str) -> int:
-        if not numbers:
-            return 0
-        
-        # Überprüfe, ob ein benutzerdefiniertes Trennzeichen angegeben ist
-        if numbers.startswith("//"):
-            delimiter_line_end = numbers.find("\n")
-            delimiter = numbers[2:delimiter_line_end]  # Extrahiere das Trennzeichen
-            numbers = numbers[delimiter_line_end + 1:]  # Entferne die erste Zeile mit dem Trennzeichen
-        else:
-            delimiter = ','  # Standard-Trennzeichen ist Komma
-
-        # Ersetze alle Vorkommen des Trennzeichens und teile die Eingabe
-        numbers = numbers.replace("\n", delimiter)
-        nums = numbers.split(delimiter)
-        
-        # Filtere alle Zahlen, die größer als 1000 sind
-        nums = [int(num) for num in nums if int(num) <= 1000]
-        
-        # Prüfe auf negative Zahlen
-        negatives = [num for num in nums if num < 0]
-        
-        if negatives:
-            # Wenn negative Zahlen vorhanden sind, werfe eine Ausnahme
-            raise ValueError(f"Negatives not allowed: {', '.join(map(str, negatives))}")
-        
-        # Berechne die Summe der Zahlen, die <= 1000 sind
-        return sum(nums)
-
-class TestStringCalculator(unittest.TestCase):
-    def setUp(self):
-        self.calculator = StringCalculator()
-
-    def test_empty_string(self):
-        self.assertEqual(self.calculator.add(""), 0)
-    
-    def test_single_number(self):
-        self.assertEqual(self.calculator.add("1"), 1)
-    
-    def test_two_numbers(self):
-        self.assertEqual(self.calculator.add("1,2"), 3)
-    
-    def test_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("1,2,3,4,5"), 15)
-    
-    def test_numbers_with_newline(self):
-        self.assertEqual(self.calculator.add("1\n2,3"), 6)
-    
-    def test_numbers_with_multiple_newlines(self):
-        self.assertEqual(self.calculator.add("1\n2\n3\n4\n5"), 15)
-    
-    def test_negative_number(self):
-        with self.assertRaises(ValueError) as context:
-            self.calculator.add("1,-2,3")
-        self.assertEqual(str(context.exception), "Negatives not allowed: -2")
-    
-    def test_multiple_negative_numbers(self):
-        with self.assertRaises(ValueError) as context:
-            self.calculator.add("1,-2,-3,4")
-        self.assertEqual(str(context.exception), "Negatives not allowed: -2, -3")
-    
-    def test_custom_delimiter(self):
-        self.assertEqual(self.calculator.add("//;\n1;2"), 3)
-    
-    def test_custom_delimiter_with_newline(self):
-        self.assertEqual(self.calculator.add("//;\n1;2\n3"), 6)
-    
-    def test_custom_delimiter_with_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("//|\n1|2|3|4"), 10)
-    
-    def test_numbers_greater_than_1000(self):
-        self.assertEqual(self.calculator.add("2,1001"), 2)
-    
-    def test_numbers_greater_than_1000_with_custom_delimiter(self):
-        self.assertEqual(self.calculator.add("//;\n2;1001"), 2)
-    
-
-if __name__ == "__main__":
-    unittest.main()
\ No newline at end of file
diff --git a/other/student7/__pycache__/Calculator.cpython-313.pyc b/other/student7/__pycache__/Calculator.cpython-313.pyc
deleted file mode 100644
index f61d4aee076afc81ec36544859b8b4244ff90ae4..0000000000000000000000000000000000000000
Binary files a/other/student7/__pycache__/Calculator.cpython-313.pyc and /dev/null differ
diff --git a/test_me_on_student1.py b/test_me_on_student1.py
deleted file mode 100644
index fd33f2ffa20c6880594ff61bb29f7a66fb69928b..0000000000000000000000000000000000000000
--- a/test_me_on_student1.py
+++ /dev/null
@@ -1,50 +0,0 @@
-import unittest
-from other.student1.Calculator import StringCalculator  # dani
-
-class TestMyCalcOnStudent1(unittest.TestCase):
-    def setUp(self):
-        self.calculator = StringCalculator()
-
-    def test_empty_string(self):
-        self.assertEqual(self.calculator.add(""), 0)
-
-    def test_single_number(self):
-        self.assertEqual(self.calculator.add("1"), 1)
-
-    def test_two_numbers(self):
-        self.assertEqual(self.calculator.add("1,2"), 3)
-
-    def test_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("1,2,3,4,5"), 15)
-
-    def test_numbers_with_newline(self):
-        self.assertEqual(self.calculator.add("1\n2,3"), 6)
-
-    def test_numbers_with_multiple_newlines(self):
-        self.assertEqual(self.calculator.add("1\n2\n3\n4\n5"), 15)
-
-    def test_negative_number(self):
-        with self.assertRaises(ValueError):
-            self.calculator.add("1,-2,3")
-
-    def test_multiple_negative_numbers(self):
-        with self.assertRaises(ValueError):
-            self.calculator.add("1,-2,-3,4")
-
-    def test_custom_delimiter(self):
-        self.assertEqual(self.calculator.add("//;\n1;2"), 3)
-
-    def test_custom_delimiter_with_newline(self):
-        self.assertEqual(self.calculator.add("//;\n1;2\n3"), 6)
-
-    def test_custom_delimiter_with_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("//|\n1|2|3|4"), 10)
-
-    def test_numbers_greater_than_1000(self):
-        self.assertEqual(self.calculator.add("2,1001"), 2)
-
-    def test_numbers_greater_than_1000_with_custom_delimiter(self):
-        self.assertEqual(self.calculator.add("//;\n2;1001"), 2)
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/test_me_on_student2.py b/test_me_on_student2.py
deleted file mode 100644
index 62056a319309a069b18b2a6191c5da8f9d2ddd2f..0000000000000000000000000000000000000000
--- a/test_me_on_student2.py
+++ /dev/null
@@ -1,52 +0,0 @@
-import unittest
-from other.student2.Calculator import StringCalculator  #wasili
-
-class TestMeOnStudent2(unittest.TestCase):
-    def setUp(self):
-        self.calc = StringCalculator()
-
-    def test_empty_string(self):
-        self.assertEqual(self.calc.add(""), 0)
-    
-    def test_single_number(self):
-        self.assertEqual(self.calc.add("1"), 1)
-    
-    def test_two_numbers(self):
-        self.assertEqual(self.calc.add("1,2"), 3)
-    
-    def test_multiple_numbers(self):
-        self.assertEqual(self.calc.add("1,2,3,4,5"), 15)
-    
-    def test_numbers_with_newline(self):
-        self.assertEqual(self.calc.add("1\n2,3"), 6)
-    
-    def test_numbers_with_multiple_newlines(self):
-        self.assertEqual(self.calc.add("1\n2\n3\n4\n5"), 15)
-    
-    def test_negative_number(self):
-        with self.assertRaises(ValueError) as context:
-            self.calc.add("1,-2,3")
-        self.assertEqual(str(context.exception), "negatives not allowed: -2")
-
-    def test_multiple_negative_numbers(self):
-        with self.assertRaises(ValueError) as context:
-            self.calc.add("1,-2,-3,4")
-        self.assertEqual(str(context.exception), "negatives not allowed: -2, -3")
-    
-    def test_custom_delimiter(self):
-        self.assertEqual(self.calc.add("//;\n1;2"), 3)
-    
-    def test_custom_delimiter_with_newline(self):
-        self.assertEqual(self.calc.add("//;\n1;2\n3"), 6)
-    
-    def test_custom_delimiter_with_multiple_numbers(self):
-        self.assertEqual(self.calc.add("//|\n1|2|3|4"), 10)
-    
-    def test_numbers_greater_than_1000(self):
-        self.assertEqual(self.calc.add("2,1001"), 2)
-    
-    def test_numbers_greater_than_1000_with_custom_delimiter(self):
-        self.assertEqual(self.calc.add("//;\n2;1001"), 2)
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/test_me_on_student3.py b/test_me_on_student3.py
deleted file mode 100644
index 1219fa4b2141def506bef414fd4789500a7a179f..0000000000000000000000000000000000000000
--- a/test_me_on_student3.py
+++ /dev/null
@@ -1,49 +0,0 @@
-import unittest
-from other.student3.Calculator import StringCalculator #momo
-
-class TestMyCasesOnStudent3(unittest.TestCase):
-    def setUp(self):
-        self.calc = StringCalculator()
-
-    def test_empty_string(self):
-        self.assertEqual(self.calc.add(""), 0)
-
-    def test_single_number(self):
-        self.assertEqual(self.calc.add("1"), 1)
-
-    def test_two_numbers(self):
-        self.assertEqual(self.calc.add("1,2"), 3)
-
-    def test_multiple_numbers(self):
-        self.assertEqual(self.calc.add("1,2,3,4,5"), 15)
-
-    def test_numbers_with_newline(self):
-        self.assertEqual(self.calc.add("1\n2,3"), 6)
-
-    def test_multiple_newlines(self):
-        self.assertEqual(self.calc.add("1\n2\n3\n4\n5"), 15)
-
-    def test_negative_number(self):
-        with self.assertRaises(ValueError) as e:
-            self.calc.add("1,-2,3")
-        self.assertEqual(str(e.exception), "negatives not allowed: -2")
-
-    def test_multiple_negative_numbers(self):
-        with self.assertRaises(ValueError) as e:
-            self.calc.add("1,-2,-3,4")
-        self.assertEqual(str(e.exception), "negatives not allowed: -2,-3")
-
-    def test_custom_delimiter(self):
-        self.assertEqual(self.calc.add("//;\n1;2"), 3)
-
-    def test_custom_delimiter_with_newline(self):
-        self.assertEqual(self.calc.add("//;\n1;2\n3"), 6)
-
-    def test_ignore_numbers_over_1000(self):
-        self.assertEqual(self.calc.add("2,1001"), 2)
-
-    def test_custom_delimiter_any_length(self):
-        self.assertEqual(self.calc.add("//[***]\n1***2***3"), 6)
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/test_me_on_student4.py b/test_me_on_student4.py
deleted file mode 100644
index 751d20e4a1c61631ad6bc6a76350756e77a42b7e..0000000000000000000000000000000000000000
--- a/test_me_on_student4.py
+++ /dev/null
@@ -1,49 +0,0 @@
-import unittest
-from other.student4.Calculator import StringCalculator  # Marvin
-
-class TestMyCasesOnStudent4(unittest.TestCase):
-    def setUp(self):
-        self.calc = StringCalculator()
-
-    def test_empty_string(self):
-        self.assertEqual(self.calc.add(""), 0)
-
-    def test_single_number(self):
-        self.assertEqual(self.calc.add("1"), 1)
-
-    def test_two_numbers(self):
-        self.assertEqual(self.calc.add("1,2"), 3)
-
-    def test_multiple_numbers(self):
-        self.assertEqual(self.calc.add("1,2,3,4,5"), 15)
-
-    def test_numbers_with_newline(self):
-        self.assertEqual(self.calc.add("1\n2,3"), 6)
-
-    def test_multiple_newlines(self):
-        self.assertEqual(self.calc.add("1\n2\n3\n4\n5"), 15)
-
-    def test_negative_number(self):
-        with self.assertRaises(ValueError) as e:
-            self.calc.add("1,-2,3")
-        self.assertEqual(str(e.exception), "Negative numbers are not allowed: -2")
-
-    def test_multiple_negative_numbers(self):
-        with self.assertRaises(ValueError) as e:
-            self.calc.add("1,-2,-3,4")
-        self.assertEqual(str(e.exception), "Negative numbers are not allowed: -2, -3")
-
-    def test_custom_delimiter(self):
-        self.assertEqual(self.calc.add("//;\n1;2"), 3)
-
-    def test_custom_delimiter_with_newline(self):
-        self.assertEqual(self.calc.add("//;\n1;2\n3"), 6)
-
-    def test_ignore_numbers_over_1000(self):
-        self.assertEqual(self.calc.add("2,1001"), 2)
-
-    def test_custom_delimiter_any_length(self):
-        self.assertEqual(self.calc.add("//[***]\n1***2***3"), 6)
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/test_me_on_student5.py b/test_me_on_student5.py
deleted file mode 100644
index c66995b7216c4da27cf6cea024f9efcb28538678..0000000000000000000000000000000000000000
--- a/test_me_on_student5.py
+++ /dev/null
@@ -1,30 +0,0 @@
-import unittest
-from other.student5.Calculator_combined import StringCalculator #orlando
-
-class TestMeOnStudent5(unittest.TestCase):
-    def setUp(self):
-        self.calc = StringCalculator()
-
-    def test_ignores_empty_entries(self):
-        self.assertEqual(self.calc.add("1,,2"), 3)
-        self.assertEqual(self.calc.add(",,1,,2,,"), 3)
-
-    def test_add_multi_char_delimiter(self):
-        self.assertEqual(self.calc.add("//[abc]\n4abc5abc6"), 15)
-
-    def test_newlines_mixed_with_commas(self):
-        self.assertEqual(self.calc.add("1,2\n3"), 6)
-
-    def test_single_number(self):
-        self.assertEqual(self.calc.add("5"), 5)
-
-    def test_custom_delimiters_varied(self):
-        self.assertEqual(self.calc.add("//_\n7_8_9"), 24)
-
-    def test_multiple_negatives(self):
-        with self.assertRaises(ValueError) as context:
-            self.calc.add("-1,-2")
-        self.assertIn("negatives not allowed", str(context.exception))
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/test_me_on_student6.py b/test_me_on_student6.py
deleted file mode 100644
index 9e6e723d8ea4d41e3a53021dca420bcb998d3c78..0000000000000000000000000000000000000000
--- a/test_me_on_student6.py
+++ /dev/null
@@ -1,53 +0,0 @@
-import unittest
-from other.student6.Calculator_combined import StringCalculator  #lasse
-
-class TestStudent6OnMe(unittest.TestCase):
-    def setUp(self):
-        self.calc = StringCalculator()
-
-    def test_add_empty_string(self):
-        self.assertEqual(self.calc.add(""), 0)
-
-    def test_add_single_number(self):
-        self.assertEqual(self.calc.add("1"), 1)
-
-    def test_add_two_numbers(self):
-        self.assertEqual(self.calc.add("10,20"), 30)
-
-    def test_add_multiple_numbers(self):
-        self.assertEqual(self.calc.add("1,2,3"), 6)
-        self.assertEqual(self.calc.add("10,20,30,40"), 100)
-
-    def test_add_with_newline_separator(self):
-        self.assertEqual(self.calc.add("1\n2,3"), 6)
-        self.assertEqual(self.calc.add("10\n20\n30"), 60)
-
-    def test_add_single_negative_number(self):
-        with self.assertRaises(ValueError) as context:
-            self.calc.add("1,-2,3")
-        self.assertEqual(str(context.exception), "Negative nicht erlaubt: [-2]")
-
-    def test_add_multiple_negative_numbers(self):
-        with self.assertRaises(ValueError) as context:
-            self.calc.add("-10\n-20,-30")
-        self.assertEqual(str(context.exception), "Negative nicht erlaubt: [-10, -20, -30]")
-
-    def test_add_with_custom_delimiter(self):
-        self.assertEqual(self.calc.add("//;\n1;2"), 3)
-        self.assertEqual(self.calc.add("//x\n7x8\n9"), 24)
-
-    def test_invalid_custom_delimiter_format(self):
-        with self.assertRaises(ValueError):
-            self.calc.add("//;1;2")
-
-    def test_ignore_numbers_greater_than_1000(self):
-        self.assertEqual(self.calc.add("2,1001"), 2)
-        self.assertEqual(self.calc.add("1002,50200"), 0)
-
-    def test_add_with_custom_delimiter_multiple_characters(self):
-        self.assertEqual(self.calc.add("//[**]\n1**2**3"), 6)
-        self.assertEqual(self.calc.add("//[###]\n10###20###30"), 60)
-
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/test_me_on_student7.py b/test_me_on_student7.py
deleted file mode 100644
index e320a61e3803569bb828e52543768198601c0b6e..0000000000000000000000000000000000000000
--- a/test_me_on_student7.py
+++ /dev/null
@@ -1,23 +0,0 @@
-import unittest
-from other.student7.Calculator import StringCalculator  # Student 7s Code wird getestet
-
-class TestMeOnStudent7(unittest.TestCase):
-    def setUp(self):
-        self.calc = StringCalculator()
-
-    def test_empty_string(self):
-        self.assertEqual(self.calc.add(""), 0)
-
-    def test_custom_delimiter(self):
-        self.assertEqual(self.calc.add("//|\n1|2|3|4"), 10)
-
-    def test_newlines_and_large_numbers(self):
-        self.assertEqual(self.calc.add("1\n2,1001"), 3)
-
-    def test_negative_handling(self):
-        with self.assertRaises(ValueError) as context:
-            self.calc.add("1,-2,-3")
-        self.assertEqual(str(context.exception), "Negatives not allowed: -2, -3")
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/test_student1_on_me.py b/test_student1_on_me.py
deleted file mode 100644
index 41a50daafe34fd9db4b7f41261e2dc7db5706bbc..0000000000000000000000000000000000000000
--- a/test_student1_on_me.py
+++ /dev/null
@@ -1,69 +0,0 @@
-import unittest
-from my_string_calculator import StringCalculator 
-
-class TestStudent1OnMyCalc(unittest.TestCase):
-    def setUp(self):
-        self.c = StringCalculator()
-
-    def test_empty(self):
-        self.assertEqual(self.c.add(""), 0)
-
-    def test_oneNumber(self):
-        self.assertEqual(self.c.add("1"), 1)
-    
-    def test_addingTwoNumbers(self):
-        self.assertEqual(self.c.add("1,2"), 3)
-
-    def test_addingTwoNumbersWithZero(self):
-        self.assertEqual(self.c.add("0,5"), 5)
-
-    def test_handleFloat(self):
-        with self.assertRaises(Exception):
-            self.c.add("3.5")
-
-    def test_handleLetter(self):
-        with self.assertRaises(Exception):
-            self.c.add("1, z")
-
-    def test_addWithBackslashN(self):
-        self.assertEqual(self.c.add("1\n2,3"), 6)
-
-    def test_negativeValues(self):
-        with self.assertRaises(ValueError):
-            self.c.add("-3")
-
-    def test_delimiter(self):
-        self.assertEqual(self.c.add("//;\n1;2"), 3)
-
-    def test_thousandone(self):
-        self.assertEqual(self.c.add("2, 1001"), 2)
-
-    def test_multidelimiter(self):
-        self.assertEqual(self.c.add("//[***]\n1***2***3"), 6)
-
-    def test_multi_negative(self):
-        with self.assertRaises(ValueError):
-            self.c.add("-3, -4")
-
-    def test_space_between_numbers(self):
-        self.assertEqual(self.c.add(" 4  , 5"), 9)
-
-    def test_multiple_num_with_thousandone(self):
-        self.assertEqual(self.c.add(" 2, 1001, 5"), 7)
-
-    def test_empty_text(self):
-        self.assertEqual(self.c.add("//;\n"), 0)
-
-    def test_one_number_with_empty_string(self):
-        self.assertEqual(self.c.add("1,"), 1)
-
-    def test_negative_with_positive(self):
-        with self.assertRaises(ValueError):
-            self.c.add("-2, 5")
-
-    def test_mixture(self):
-        with self.assertRaises(ValueError):
-            self.c.add("//;\n-1;2;1001;-3")
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/test_student2_on_me.py b/test_student2_on_me.py
deleted file mode 100644
index ad6d014541c3df51cde650a07974c6b5386646a8..0000000000000000000000000000000000000000
--- a/test_student2_on_me.py
+++ /dev/null
@@ -1,47 +0,0 @@
-import unittest
-from my_string_calculator import StringCalculator  # Wasili
-
-class TestStudent2OnMe(unittest.TestCase):
-    def setUp(self):
-        self.calc = StringCalculator()
-
-    def test_add_empty(self):
-        self.assertEqual(self.calc.add(""), 0)
-
-    def test_add_one_string(self):
-        self.assertEqual(self.calc.add("1"), 1)
-
-    def test_add_two_string(self):
-        self.assertEqual(self.calc.add("1,2"), 3)
-
-    def test_add_multiple_string(self):
-        self.assertEqual(self.calc.add("1,2,3,4,5,6,7"), 28)
-
-    def test_add_new_lines(self):
-        self.assertEqual(self.calc.add("1\n2,3,4"), 10)
-
-    def test_add_exception(self):
-        with self.assertRaises(ValueError) as context:
-            self.calc.add("-5")
-        self.assertEqual(str(context.exception), "Negatives not allowed: -5")
-
-    def test_add_negative_numbers(self):
-        with self.assertRaises(ValueError) as context:
-            self.calc.add("-5,-2,-2")
-        self.assertEqual(str(context.exception), "Negatives not allowed: -5, -2, -2")
-
-    def test_add_different_delimiters(self):
-        self.assertEqual(self.calc.add("//;\n1;2"), 3)
-
-    def test_add_numbers_greater_than_1000(self):
-        self.assertEqual(self.calc.add("2,1001"), 2)
-        self.assertEqual(self.calc.add("2,10022\n6"), 8)
-
-    def test_delimiters_of_any_length(self):
-        self.assertEqual(self.calc.add("//[***]\n1***2***3"), 6)
-
-    def test_delimiters_of_any_length2(self):
-        self.assertEqual(self.calc.add("//[*+*+*]\n1*+*+*2*+*+*3*+*+*220"), 226)
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/test_student3_on_me.py b/test_student3_on_me.py
deleted file mode 100644
index a498fc07f928bc4c93471fba72492027479390ee..0000000000000000000000000000000000000000
--- a/test_student3_on_me.py
+++ /dev/null
@@ -1,49 +0,0 @@
-import unittest
-from my_string_calculator import StringCalculator #Momo
-
-class TestStudent3CasesOnMe(unittest.TestCase):
-    def setUp(self):
-        self.calc = StringCalculator()
-
-    def test_empty_string(self):
-        self.assertEqual(self.calc.add(""), 0)
-
-    def test_single_number(self):
-        self.assertEqual(self.calc.add("5"), 5)
-
-    def test_multiple_numbers(self):
-        self.assertEqual(self.calc.add("5,5"), 10)
-
-    def test_unknown_amount_of_numbers(self):
-        self.assertEqual(self.calc.add("1,2,3"), 6)
-        self.assertEqual(self.calc.add("10,20,30,40"), 100)
-        self.assertEqual(self.calc.add("1,2,3,4,5,6"), 21)
-
-    def test_numbers_separated_by_newline(self):
-        self.assertEqual(self.calc.add("1\n2"), 3)
-        self.assertEqual(self.calc.add("1\n2\n3"), 6)
-        self.assertEqual(self.calc.add("10,20\n30"), 60)
-
-    def test_negative_number_exception(self):
-        with self.assertRaises(ValueError) as e:
-            self.calc.add("-1,2")
-        self.assertEqual(str(e.exception), "Negatives not allowed: -1")
-
-    def test_multiple_negative_numbers_exception(self):
-        with self.assertRaises(ValueError) as e:
-            self.calc.add("-1,-2,3")
-        self.assertEqual(str(e.exception), "Negatives not allowed: -1, -2")
-
-    def test_add_numbers_with_custom_delimiter(self):
-        self.assertEqual(self.calc.add("//;\n1;2;3"), 6)
-
-    def test_ignore_numbers_over_1000(self):
-        self.assertEqual(self.calc.add("1,1001,2,3"), 6)
-
-    def test_custom_delimiter_with_long_pattern(self):
-        self.assertEqual(self.calc.add("//[***]\n1***2***3"), 6)
-        self.assertEqual(self.calc.add("//[+++]\n1+++2+++3"), 6)
-        self.assertEqual(self.calc.add("//[aa]\n1aa2aa3"), 6)
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/test_student4_on_me.py b/test_student4_on_me.py
deleted file mode 100644
index 70cde1ecfb2ff0ffd124b19898249cd1413ed37a..0000000000000000000000000000000000000000
--- a/test_student4_on_me.py
+++ /dev/null
@@ -1,55 +0,0 @@
-import unittest
-from my_string_calculator import StringCalculator 
-
-class TestStudent4CasesOnMe(unittest.TestCase):
-    def setUp(self):
-        self.calculator = StringCalculator()
-
-    def test_empty_string_returns_zero(self):
-        self.assertEqual(self.calculator.add(""), 0)
-
-    def test_single_number_returns_value(self):
-        self.assertEqual(self.calculator.add("1"), 1)
-
-    def test_two_numbers_return_sum(self):
-        self.assertEqual(self.calculator.add("1,2"), 3)
-
-    def test_add_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("1,2,3,4,5"), 15)
-
-    def test_add_numbers_with_newlines(self):
-        self.assertEqual(self.calculator.add("1\n2\n3"), 6)
-
-    def test_add_negative_numbers(self):
-        with self.assertRaises(ValueError) as e:
-            self.calculator.add("-1,2,-3")
-        self.assertEqual(str(e.exception), "Negatives not allowed: -1, -3")
-
-    def test_add_numbers_with_custom_delimiter(self):
-        self.assertEqual(self.calculator.add("//;\n1;2;3"), 6)
-
-    def test_add_numbers_with_custom_delimiter_different_symbol(self):
-        self.assertEqual(self.calculator.add("//#\n4#5#6"), 15)
-
-    def test_custom_delimiter_with_multiple_numbers(self):
-        self.assertEqual(self.calculator.add("//:\n1:2:3:4:5:6"), 21)
-
-    def test_add_numbers_greater_than_1000(self):
-        self.assertEqual(self.calculator.add("1,1001,2,3"), 6)
-
-    def test_add_numbers_with_newlines_and_ignore_above_1000(self):
-        self.assertEqual(self.calculator.add("1\n2\n1000\n1001"), 1003)
-
-    def test_add_numbers_with_custom_delimiter_long_length(self):
-        self.assertEqual(self.calculator.add("//[***]\n1***2***3"), 6)
-
-    def test_custom_long_delimiter_with_large_number_ignored(self):
-        self.assertEqual(self.calculator.add("//[***]\n1***1001***2"), 3)
-
-    def test_custom_long_delimiter_with_negative_numbers(self):
-        with self.assertRaises(ValueError) as e:
-            self.calculator.add("//[***]\n1***-2***3***-4")
-        self.assertEqual(str(e.exception), "Negatives not allowed: -2, -4")
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/test_student5_on_me.py b/test_student5_on_me.py
deleted file mode 100644
index f61272306c7f41d22d0595d33d523e9c26c583a0..0000000000000000000000000000000000000000
--- a/test_student5_on_me.py
+++ /dev/null
@@ -1,57 +0,0 @@
-import unittest
-from my_string_calculator import StringCalculator  
-
-class TestStudent5OnMyCode(unittest.TestCase):
-    def setUp(self):
-        self.calc = StringCalculator()
-
-    def test_add_empty_string(self):
-        self.assertEqual(self.calc.add(""), 0)
-
-    def test_add_single_number(self):
-        self.assertEqual(self.calc.add("1"), 1)
-
-    def test_add_two_numbers(self):
-        self.assertEqual(self.calc.add("1,2"), 3)
-
-    def test_add_multiple_numbers(self):
-        self.assertEqual(self.calc.add("1,2,3"), 6)
-        self.assertEqual(self.calc.add("1,2,3,4,5"), 15)
-
-    def test_add_ignores_empty_entries(self):
-        self.assertEqual(self.calc.add("1,,2"), 3)
-        self.assertEqual(self.calc.add("1, ,2"), 3)
-        self.assertEqual(self.calc.add(",,1,,2,,,"), 3)
-
-    def test_add_with_newlines_between_numbers(self):
-        self.assertEqual(self.calc.add("1\n2,3"), 6)
-        self.assertEqual(self.calc.add("1,2\n3"), 6)
-        self.assertEqual(self.calc.add("1\n2\n3"), 6)
-
-    def test_add_raises_exception_on_negative_number(self):
-        with self.assertRaises(ValueError) as context:
-            self.calc.add("1,-2")
-        self.assertIn("Negatives not allowed", str(context.exception))
-
-    def test_add_raises_exception_on_multiple_negatives(self):
-        with self.assertRaises(ValueError) as context:
-            self.calc.add("-1,-2,3")
-        self.assertIn("Negatives not allowed", str(context.exception))
-
-    def test_add_with_custom_delimiter(self):
-        self.assertEqual(self.calc.add("//;\n1;2"), 3)
-        self.assertEqual(self.calc.add("//|\n4|5|6"), 15)
-        self.assertEqual(self.calc.add("//_\n7_8_9"), 24)
-
-    def test_add_ignores_numbers_greater_than_1000(self):
-        self.assertEqual(self.calc.add("2,1001"), 2)
-        self.assertEqual(self.calc.add("1000,1"), 1001)
-        self.assertEqual(self.calc.add("1234,1001,3"), 3)
-
-    def test_add_with_multi_char_delimiter(self):
-        self.assertEqual(self.calc.add("//[***]\n1***2***3"), 6)
-        self.assertEqual(self.calc.add("//[abc]\n4abc5abc6"), 15)
-        self.assertEqual(self.calc.add("//[+]\n1+2+3"), 6)
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/test_student6_on_me.py b/test_student6_on_me.py
deleted file mode 100644
index f21ca8bd646ba99ee04df6e5ed6621b34820975c..0000000000000000000000000000000000000000
--- a/test_student6_on_me.py
+++ /dev/null
@@ -1,53 +0,0 @@
-import unittest
-from my_string_calculator import StringCalculator  # lasse
-
-class TestStudent6OnMe(unittest.TestCase):
-    def setUp(self):
-        self.calc = StringCalculator()
-
-    def test_add_empty_string(self):
-        self.assertEqual(self.calc.add(""), 0)
-
-    def test_add_single_number(self):
-        self.assertEqual(self.calc.add("1"), 1)
-
-    def test_add_two_numbers(self):
-        self.assertEqual(self.calc.add("10,20"), 30)
-
-    def test_add_multiple_numbers(self):
-        self.assertEqual(self.calc.add("1,2,3"), 6)
-        self.assertEqual(self.calc.add("10,20,30,40"), 100)
-
-    def test_add_with_newline_separator(self):
-        self.assertEqual(self.calc.add("1\n2,3"), 6)
-        self.assertEqual(self.calc.add("10\n20\n30"), 60)
-
-    def test_add_single_negative_number(self):
-        with self.assertRaises(ValueError) as context:
-            self.calc.add("1,-2,3")
-        self.assertEqual(str(context.exception), "Negative nicht erlaubt: [-2]")
-
-    def test_add_multiple_negative_numbers(self):
-        with self.assertRaises(ValueError) as context:
-            self.calc.add("-10\n-20,-30")
-        self.assertEqual(str(context.exception), "Negative nicht erlaubt: [-10, -20, -30]")
-
-    def test_add_with_custom_delimiter(self):
-        self.assertEqual(self.calc.add("//;\n1;2"), 3)
-        self.assertEqual(self.calc.add("//x\n7x8\n9"), 24)
-
-    def test_invalid_custom_delimiter_format(self):
-        with self.assertRaises(ValueError):
-            self.calc.add("//;1;2")
-
-    def test_ignore_numbers_greater_than_1000(self):
-        self.assertEqual(self.calc.add("2,1001"), 2)
-        self.assertEqual(self.calc.add("1002,50200"), 0)
-
-    def test_add_with_custom_delimiter_multiple_characters(self):
-        self.assertEqual(self.calc.add("//[**]\n1**2**3"), 6)
-        self.assertEqual(self.calc.add("//[###]\n10###20###30"), 60)
-
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/test_student7_on_me.py b/test_student7_on_me.py
deleted file mode 100644
index 626f26385d917dc7b4b1cb222069047d4a9ee20f..0000000000000000000000000000000000000000
--- a/test_student7_on_me.py
+++ /dev/null
@@ -1,35 +0,0 @@
-import unittest
-from my_string_calculator import StringCalculator  # Hatice und ich hatten den selben code
-
-class TestStudent7OnMe(unittest.TestCase):
-    def setUp(self):
-        self.calc = StringCalculator()
-
-    def test_empty_string(self):
-        self.assertEqual(self.calc.add(""), 0)
-
-    def test_single_number(self):
-        self.assertEqual(self.calc.add("1"), 1)
-
-    def test_two_numbers(self):
-        self.assertEqual(self.calc.add("1,2"), 3)
-
-    def test_multiple_numbers(self):
-        self.assertEqual(self.calc.add("1,2,3,4,5"), 15)
-
-    def test_numbers_with_newline(self):
-        self.assertEqual(self.calc.add("1\n2,3"), 6)
-
-    def test_negative_number(self):
-        with self.assertRaises(ValueError) as e:
-            self.calc.add("1,-2")
-        self.assertEqual(str(e.exception), "Negatives not allowed: -2")
-
-    def test_custom_delimiter(self):
-        self.assertEqual(self.calc.add("//;\n1;2"), 3)
-
-    def test_large_numbers_ignored(self):
-        self.assertEqual(self.calc.add("2,1001"), 2)
-
-if __name__ == "__main__":
-    unittest.main()