bot_add_subtract_notUnderstand_with_comments

print("Hi, I am Marvin, your personal bot.")

#asks and prints users name
user_name = input ("What is your name? ")
print("Welcome " + user_name )

#input a calculation type
command = input("How can I help? ")

#when input add does an addition calculation
if command == "add":
    print("let's add some numbers")
    input1 = input("Number 1> ")
    input2 = input("Number 2> ")
    number1 = int(input1)
    number2 = int(input2)
    result = number1 + number2
    output = str(result)
    print(input1 + " + " + input2 + " = " + output)

#when input suntract does a suntraction calculation
elif command == "subtract":
    print("let's subtract some numbers")
    input1 = input("Number 1> ")
    input2 = input("Number 2> ")
    number1 = int(input1)
    number2 = int(input2)
    result = number1 - number2
    output = str(result)
    print(input1 + " - " + input2 + " = " + output)

# if neither add or subtract outputs an apology
else:
    print ("sorry I can't do that yet!!!")