7
7
1
8
4
4
8
2
1
1
2
3
7
2
1
8
1
7
9
8
6
3
9
4
0
0
5
9
2
1
3
9
2
0
0
1
0
0
8
1
9
9
8
0
5
1
3
0
3
3
7
4
0
5
9
0
1
5
2
3