1
2
1
1
2
2
1
1
3
1
0
0
4
0
-1
-1
5
2
1
1
6
3
2
2
7
2
1
1
8
0
-1
-1
9
2
1
1
10
1
0
0
11
2
1
1
15
2
1
1
17
2
1
1
18
2
1
1
19
2
1
1
21
2
1
1
