Ticket 3673
Problem 1647 -b
View hacks & all small testcases

Unable to dry run this testcase?
Try making a new request with small values of n_high, t_high, *_high, etc.


Retry
Input
1
4 6
010010
100010
000100
100011
Expected Output
YES
Generator Parameters
--col_high 7 --col_low 1 --row_high 7 --row_low 1 --t_high 2 --t_low 1