Hi guys ,
I think the editorial's solution (https://codeforces.me/blog/entry/78864)
for this (https://codeforces.me/contest/1367/problem/D) problem is wrong

Proof:
Try this test case :
1
cbazzkjbsdf
3
3 1 0

For the above testcase actual output should have been abc
but according to almost all codes(including editorialist's) its ksz

So am i correct ?? or have i made a mistake in understanding the problem??

I resort to your generous replies.

Thanks in Advance.