Require help regarding TLE in a question

Hey
I am not able to understand why i am getting TLE in the given question.
According to me it will take O(T*log(n)) time which is under the limit.
also the matrix exponentiation function given in the question has been used correctly many times
Solution:- CodeChef: Practical coding for everyone

Can anybody please help.

Consider the test input:

1
1
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Thanks a lot.

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good to see you back!!

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