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
0
0
0
0
0
0
-1
0
0
0
-1
0
-1
0
-1
0
1
0
0
0
-1
0
0
0
0
0
0
0
