0
0
2
0
2
2
0
1
1
2
2
0
0
2
0
2
0
0
0
2
2
2
0
2
0
0
2
0
0
2
2
4
0
4
2
2
0
2
2
2
2
4
0
2
0
2
0
2
0
0
2
2
2
0
2
4
0
2
2
2
13
0
0
0
2
2
9
2
2
2
0
2
2
2
2
0
2
2
2
2
0
0
2
2
2
2
2
0
0
9
2
0
0
1
0
0
2
2
1
2
0
0
0
2
0
2
2
0
0
2
0
4
2
0
2
2
2
2
0
2
0
0
0
2
2
0
0
0
2
2
0
0
0
2
0
0
2
0
2
0
0
2
2
2
2
1
2
2
11
1
2
0
0
2
2
0
1
0
0
2
2
0
0
2
0
2
2
0
2
2
0
0
2
0
2
2
2
0
2
2
0
2
2
0
0
1
2
11
2
2
0
4
8
2
0
0
0
2
0
0
0
0
0
0
2
0
0
2
12
2
0
0
0
0
2
0
2
2
0
0
0
2
2
2
2
0
1
0
1
0
0
2
2
0
2
0
2
0
0
0
2
0
2
2
2
2
0
0
0
2
2
0
2
2
0
0
2
2
2
0
0
0
0
0
1
2
13
0
2
2
2
2
0
2
2
2
0
2
2
0
2
2
2
2
0
2
0
7
