10
-1
12
2
9
1
0
-1
0
0
0
9
1
0
5
0
-1
-1
-1
-1
-1
-1
-1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
6
