
4 2 
12 5 8 11 13 16 10 11 

2 2
-1 1 1 1

#dlghldlA
4 4
0 0 0 0  0 0 0 0 
0 0 0 0 0 0 0 0

4 4
1 1 1 1  1 1 1 1 
1 1 1 1 1 1 1 1



