7
240 260
80 140
400 140
80 580
400 580
240 360
240 460
0 1 1 0 0 0 0
1 0 1 1 0 0 0
1 1 0 0 1 0 0
0 1 0 0 1 1 1
0 0 1 1 0 1 1
0 0 0 1 1 0 0
0 0 0 1 1 0 0
1
