2
0
1
2
22
7
4
2
5
4
0
2
0
2
2
2
3
4
19
0
2
0
0
2
4
0
0
4
2
0
5
5
2
2
0
2
2
0
0
0
4
4
7
0
4
0
2
2
4
2
0
0
2
7
2
2
0
4
0
2
2
0
4
2
2
4
2
0
4
2
0
0
0
2
0
0
2
6
11
6
4
2
2
0
0
2
3
4
0
5
0
2
2
0
2
0
3
2
0
0
2
4
2
2
0
2
2
0
0
0
2
2
2
19
0
0
5
2
0
4
2
0
2
2
7
0
2
2
2
4
2
0
2
0
2
2
0
4
2
5
6
2
0
0
0
2
0
4
6
2
2
2
0
2
2
2
5
2
0
2
2
30
9
5
2
0
2
2
2
2
2
0
2
3
2
2
2
0
0
2
2
2
2
0
2
12
4
4
0
2
2
0
0
2
0
0
4
13
2
0
2
2
0
2
0
0
2
0
3
4
16
2
4
5
2
2
0
4
2
2
0
0
0
2
2
0
4
0
2
0
0
2
0
0
4
2
0
2
0
4
0
2
2
0
0
0
4
0
4
2
0
4
2
2
2
0
2
9
5
4
2
4
2
0
2
2
0
0
0
4
0
0
2
4
0
3
0
2
0
2
5
2
6
4
2
7
0
4
