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Ticket 3909
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
7 7
0000010
0111011
1100001
1111101
0000000
1111110
1010110
Expected Output
NO
Generator Parameters
--col_high 7 --col_low 7 --row_high 7 --row_low 7 --t_high 2 --t_low 1