Help please my 3rd and 6th test case failed

Question

Help
https://code.sololearn.com/cj5gcWKzg9PS/?ref=app

Answer 1

Can you solve it because i am trying to resolve it but the output is one

Answer 2

But test case 6 fail what to do

Answer 3

It tryed that but test case 6 failed once again

Answer 4

Thank you for your help !