2
sxy
0
2
1
2
3
4
3
0
3
2
0
1
1
1
3
4
0
0
7
1
1
3
6
4
3
1
2
2
3
3
5
1
7
1
2
3
0
1
12
2
1
9
5
4
28
4
6
2
2
4
4
3
9
13
2
1
3
3
1
