Python 101 2.12 Commands

print("Hello there.  My name is Marvin and I'm your personal bot.")
user_name=input("What's your name?")
print("Hello " + user_name + " and welcome.")
command = input("How can I help? >")
if command == "add" or command == "plus":
    print("Let's add some numbers.")
    input1=input("Number1 > ")
    input2=input("Number2 > ")
    number1=int(input1)
    number2=int(input2)
    result=number1+number2
    output=str(result)
    print(input1 + "+" + input2 + "=" + output)
elif command == "subtract" or command == "take away":
        print("Let's subtract some numbers.")
        input1=input("Number1")
        input2=input("Number2")
        number1=int(input1)
        number2=int(input2)
        result=number1-number2
        output=str(result)
        print(input1 + "-" + input2 + "=" + output)
else:
        print("Sorry I don't understand.  Bye.")