class MathOperation:
def perform_operation(self, a, b):
return 0 # Base class default implementation
class Addition(MathOperation):
def perform_operation(self, a, b):
return a + b
class Subtraction(MathOperation):
def perform_operation(self, a, b):
return a - b
if __name__ == "__main__":
operation = None
num1, num2 = 0, 0
print("\n\n\tAddition and Subtraction Using Polymorphism in Python\n")
num1 = int(input("\tEnter the first number: "))
num2 = int(input("\tEnter the second number: "))
op = input("\tEnter the operation (+ for addition, - for subtraction): ")
if op == '+':
operation = Addition()
elif op == '-':
operation = Subtraction()
else:
print("\tInvalid operation.")
exit()
result = operation.perform_operation(num1, num2)
print("\n\tThe Result:", result)
print("\n\tEnd of Program. Thank you for using this program.")
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