8
180 100
420 100
180 340
420 340
300 340
300 580
60 580
60 340
0 0 1 0 0 0 0 0
1 0 2 0 0 0 0 0
1 2 0 0 2 0 0 1
0 1 0 0 1 0 0 0
0 0 2 1 0 1 2 0
0 0 0 0 1 0 1 0
0 0 0 0 2 0 0 1
0 0 1 0 0 0 0 0
6
