Codechef giving error in 3rd sub task

Help me, I am new on codechef and giving my first coding contest but what is this error showing my code and output is 100% correct totally no doubt then Why this error.
https://ibb.co/t8h1nNq
https://ibb.co/z87HCY7

In first problem you missed the case: X == Y.

In second problem consider what will happens when A = B > C. If you replace every > with >= you will get an AC.