Python coding question. I don't know what to do EOFError

I think I'll erase all the n = int() and rewrite it to n = 999999999999 on line 13, and then run the script to see what's on the LED screen.

Research one line at a time like this! Anyone will get caught in a ten-line code.

How do I solve this?

Unfortunately, programming is the process of figuring it out for yourself. Of course, above a certain level, it's difficult, I don't understand, it's annoying, and complicated.

I don't know what to do.

As I explained earlier, the feeling of not knowing is inevitable as long as it is programmed. Avoid it if you can't enjoy it.