2
0
-2
1
-1
1
0
0
-2
2
0
1
-3
5
-2
0
0
2
-2
1
1
-3
-1
2
1
0
-1
-2
1
0
-1
0
-3
1
1
0
1
1
-1
1
-2
3
-2
-2
-2
1
1
1
