2
12
0 0
1 0
2 0
3 0
3 1
3 2
3 3
2 3
1 3
0 3
0 2
0 1
1 2 5
12
0 0
1 0
2 0
3 0
3 1
3 2
3 3
2 3
1 3
0 3
0 2
0 1
1 3 4
