2
4
4
0
0
1
2
2
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
2
0
0
0
1
0
0
0
0
2
4
0
0
0
0
1
2
1
0
0
1
0
1
0
0
0
1
0
1
0
0
4
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
2
1
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
2
0
0
0
0
0
0
1
0
0
1
