제출 #97066

2 2
11
01

[['1', 2], [2, 3]]
3

3

6 2
11
11
11
01
11
11

[['1', 2], [2, 3], [3, 4], [4, 5], [5, 6], [6, 7]]
7

7

7 2
10
11
11
11
11
01
01

[['1', 2], [2, 3], [3, 4], [4, 5], [5, 6], [6, 7], [7, 8]]
8

8