ques link https://hack.codingblocks.com/contests/c/473/92
in this we actually had to compute { A ^ (B%(p-1)) }%p but sir has rewritten this expression
as (A%p) ^ (B%(p-1)) . i am not able to understand how { A ^ (B%(p-1)) }%p has got converted to
(A%p) ^ (B%(p-1))
