If you need a number from input, wrap it with int() or float(): python age = int(input("Your age: ")) height = float(input("Your height in meters: ")) int() converts to a whole number. float() converts to a decimal number.
If the user types something that can't convert (like "abc" for int), Python throws an error. For now, assume users type valid input. Error handling comes later. Most HackerRank problems guarantee valid input, so you can safely convert without checking.