8
240 500
340 400
440 300
140 400
40 300
240 280
340 180
140 180
0 1 0 1 0 2 0 0
1 0 1 0 0 1 1 0
0 1 0 0 0 0 1 0
1 0 0 0 1 1 0 1
0 0 0 1 0 0 0 1
2 1 0 1 0 0 1 1
0 1 1 0 0 1 0 0
0 0 0 1 1 1 0 0
7
