My calculator is no longer working

Question

I made a calculator and everything was good. But now, when I type in very big numbers the program outputs: Time limit exceeded

Answer 1

https://code.sololearn.com/czKj8n52ph63/?ref=app

Answer 2

I am not using math a lot... and also this % things are repeating because it didn't work when I used it once.
Homework? Of course, no.

Answer 3

ugh...

Answer 4

Yee, I am