8 8
0   1    0    0    0    0    0    0  
0   0    0    0    1    0    0    0  
0   0    0    0    0    1    0   -4  
0   0    0    0    0    0    1   -7  
1   0    0   -1    0    0    0    6  
1   0    1    0    0    0    0   -1  
1   0   -1    1    0    0    0   -1  
1   0   -1    0    0    0    0    3  


E 0
P 3
