40 40
1 1 3 3
0 0 1
1 0 1
0 1 1
9 9 3 3
0 0 1
1 0 1
0 1 1
20 20 3 3
0 0 1
1 0 1
0 1 1
36 36 3 3
1 0 0
1 0 1
1 1 0