Only 2 testcases are running

#1

PROBLEM - https://hack.codingblocks.com/app/contests/1499/1506/problem

MY CODE - https://ide.codingblocks.com/s/434395

PLEASE HELP

#2

Hello @hssharma2212000 your code is falling for test cases like these:
2
aa
bb
check this code:

#3

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