import random

def main(userValue, compValue):
    userInput = False
    while not userInput:
        try:
            userValue = int(input("1. Rock, 2. Paper, or 3. Scissors? "))
            compValue = random.randint(1, 3)
        except ValueError:
            main(userValue, compValue)
    if userValue == compValue:
        print("Computer chose the same hand as you!")
        print("It's a tie!")
    elif userValue == 1 and compValue == 2:
        print("Computer chose paper.")
        print("You lose!")
    elif userValue == 1 and compValue == 3:
        print("Computer chose scissors.")
        print("You win!")
    elif userValue == 2 and compValue == 1:
        print("Computer chose rock.")
        print("You win!")
    elif userValue == 2 and compValue == 3:
        print("Computer chose scissors.")
        print("You lose!")
    elif userValue == 3 and compValue == 2:
        print("Computer chose paper.")
        print("You win!")
    elif userValue == 3 and compValue == 1:
        print("Computer chose rock.")
        print("You lose!")

main(compValue, userValue)