9
240 200
400 200
80 200
240 360
400 360
80 520
240 520
400 520
80 360
0 1 1 2 0 0 0 0 0
1 0 0 2 1 0 0 0 0
1 0 0 2 0 0 0 0 1
2 0 0 0 1 2 0 2 1
0 1 0 1 0 0 0 1 0
0 0 0 2 0 0 1 0 1
0 0 0 2 0 1 0 1 0
0 0 0 2 1 0 1 0 0
0 0 1 1 0 1 0 0 0
8
