What is the problem here?

Question

https://code.sololearn.com/ci6UYG2728W1/?ref=app

Answer 1

Seems you have typed something wrong on line 19

Answer 2

In line 19 I think
100 str(-) str(coins) should be 100 - str(coins)

And from line 35-47 you haven't used ':' after if/elif/else
https://code.sololearn.com/cz2kXElTxKC5/?ref=app