4
0
1
9
2
7
9
1
2
4
2
2
6
1
1
2
1
1
6
0
0
9
0
0
6
0
0
4
0
0
4
0
0
7
0
0
6
0
0
9
0
0
5
0
0
7
0
0
7
0
0
7
0
0
6
0
0
7
0
0