case 1 failed: ans 1 expected 0 got 146
input:
19 15
11 15 7 14 14 12 15 11 19 16 2 6 13 17 13 5 9 2 17
9 1
11 1
18 1
14 1
19 1
14 1
18 1
12 1
19 1
8 1
18 1
14 1
13 1
16 1
11 1
exit status 1