hi. i was solving 1742C - Полосы. my code was 269508031.it seems to be running fine on all test cases which i was testing manually but on CF, 1st test was fine but the 2nd test gave error on test case 10. Unfortunately, i am not able to find what the error was as the the test case is not visible.

Please suggest what i should do?? (i am a beginner and only know python)

edit: i have debugged the code multiple times, still cant find any errors