1
750
4 -800 0 11200 800 0 11200 800 0 -9600 -800 0 -9600 
1
  a3 4 0 1 2 3 
3000
4 -800 0 11200 800 0 11200 800 0 -9600 -800 0 -9600 
1
  a3 4 0 1 2 3 
17000
6 -800 0 11200 800 0 11200 800 0 -9600 -800 0 -9600 0 0 11200 0 0 -9600 
1
  a3 2 4 5 

15000 2
