1
/
-1
0
/
-1
0
/
-1
2
/
0
1
/
-1
2
/
-2
1
/
-1
1
/
-2
1
/
-1
1
/
-1
1
/
-1
1
/
-1
3
/
-1
3
/
-1
2
/
-1
1
/
-1
2
/
0
1
/
-2
1
2
3
4
5
6
7
8
»
