# Basic Calculator

# Display welcome message
print("Welcome to the Basic Calculator")

# While loop for continuous operation
while True:
    print("\nChoose an operation:")
    print("1. Addition (+)")
    print("2. Subtraction (-)")
    print("3. Multiplication (*)")
    print("4. Division (/)")
    print("5. Exit")
    
    # User input for choice
    choice = input("Enter your choice (1-5): ")
    
    # Control statements
    if choice in ('1', '2', '3', '4'):
        # Taking two numbers as input
        num1 = float(input("Enter first number: "))
        num2 = float(input("Enter second number: "))
        
        if choice == '1':
            result = num1 + num2  # Addition
            print(f"Result: {num1} + {num2} = {result}")
        elif choice == '2':
            result = num1 - num2  # Subtraction
            print(f"Result: {num1} - {num2} = {result}")
        elif choice == '3':
            result = num1 * num2  # Multiplication
            print(f"Result: {num1} × {num2} = {result}")
        elif choice == '4':
            if num2 != 0:
                result = num1 / num2  # Division
                print(f"Result: {num1} ÷ {num2} = {result}")
            else:
                print("Error: Division by zero is not allowed.")
        
    elif choice == '5':
        print("Exiting... Thank you for using the calculator!")
        break
        
    else:
        print("Invalid choice! Please enter a number between 1 and 5.")

# End of Program