Working alongside a video, not getting the same result.

[Larz60+]

1. Always show error traceback, unmodified and complete within error tags.
   
2. Number must be defined before being accessed.
   

example:
This will create an error:

if number < 11:
    print(1, 10)
    number = number + 1

This will not:

number = 5
if number < 11:
    print(1, 10)
    number = number + 1