Calculator 1.0

# This will be a calculator program.

print("Welcome to the worst calculator application!")
userName = input("What is your name, stranger? ")
print("Well, hello there, " + userName + ".")
choice = input("What would you like to do? Enter 'ADD' for Addition, \
'SUB' for Subtraction, 'MULT' for Multiplication, \
or 'DIV' for Divide, or 'QUIT' to exit the program: ")

while True:
    # Addition
    if choice.upper() == "ADD":
        num1 = int(input("Enter your first number: "))
        num2 = int(input("Enter your second number: "))
        answer = num1 + num2
        print("")
        print("Your answer to " + str(num1) + " + " + str(num2) + " is " + str(answer) + ".")
        print("")

    # Subtraction
    elif choice.upper() == "SUB":
        num1 = int(input("Enter your first number which will be subtracted: "))
        num2 = int(input("Enter your second numer to subtract " + str(num1) + " by: "))
        answer = num1 - num2
        print("")
        print("Your answer to " + str(num1) + " - " + str(num2) + " is " + str(answer) + ".")
        print("")

    # Multiplication
    elif choice.upper() == "MULT":
        num1 = int(input("Enter your first number: "))
        num2 = int(input("Enter your second numer: "))
        answer = num1 * num2
        print("")
        print("Your answer to " + str(num1) + " * " + str(num2) + " is " + str(answer) + ".")
        print("")

    # Division
    elif choice.upper() == "DIV":
        num1 = int(input("Enter your first number which will be divided: "))
        num2 = int(input("Enter your second numer to divide " + str(num1) + " by: "))
        answer = num1 / num2
        print("")
        print("Your answer to " + str(num1) + " / " + str(num2) + " is " + str(answer) + ".")
        print("")

    # Exit
    elif choice.upper() == "QUIT":
        break

    # Invalid
    else:
        print("Invalid input, please try again")

    choice = input("What would you like to do? Enter 'ADD' for Addition, \
'SUB' for Subtraction, 'MULT' for Multiplication, \
or 'DIV' for Divide, or 'QUIT' to exit the program: ")