제출 #126178

2 2
1 0
0 0
1 2 3
2 2 3

0

1

2 3
0 0 0
1 0 1
1 3 2
1 1 4

1

2

2 4
0 1 0 0
1 1 0 1
1 3 3
2 3 2

1

2