#   
6 4 

0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
0 
2 
0 
0 
0 
# c 
2 4 
2 2 
1 
1 
0 4 4 4 
2 2
2 1 1 1 
2 2
1.0 2.0 3 4
