8
80 160
400 160
240 160
80 320
400 320
80 520
400 520
240 520
0 0 1 1 0 0 0 0
0 0 1 0 1 0 0 0
1 1 0 1 0 0 0 0
1 0 1 0 1 1 0 2
0 1 2 1 0 0 1 1
0 0 0 1 0 0 0 1
0 0 0 0 1 0 0 1
0 0 0 0 1 1 1 0
7
