Im trying to figure out on how to INPUT a numper into my programs by writing a simple timer program it come up with "syntax error in 0:2". looks like I did something wrong in line 2 or something.

Im writing a simple progam to cycke through text & text background colours. While I was successful with text colour itself but as soon as I added the third line in the screenshot to cycle through text background I been gettint the "FOR without NEXT at 0:7" error message.