def addition(x, y):
    return x + y

def subtraction(x, y):
    return x - y

def multiplication(x, y):
    return x * y

def division(x, y):
    if y != 0:
        return x / y
    else:
        return "Cannot divide by zero"

def modulus(x, y):
    if y != 0:
        return x % y
    else:
        return "Cannot compute modulus by zero"

def exponentiation(x, y):
    return x ** y

def arithmetic_operations(x, y, operation):
    
    operations = {
        1: addition,
        2: subtraction,
        3: multiplication,
        4: division,
        5: modulus,
        6: exponentiation
    }

    if operation in operations:
        result = operations[operation](x, y)
        print(f"Result of operation: {result}")
    else:
        print("Invalid operation")


num1 = float(input("Enter the first number: "))
num2 = float(input("Enter the second number: "))
print("Select operation:")
print("1. Addition")
print("2. Subtraction")
print("3. Multiplication")
print("4. Division")
print("5. Modulus")
print("6. Exponentiation")
operation = int(input("Enter operation number: "))

arithmetic_operations(num1, num2, operation)