1
6
2
8
2
3
7
1
4
3
3
3
2
1
2
1
2
2
2
1
1
1
3
5
1
1
12
1
10
11
1
4
2
4
2
3
2
4
2
4
3
4
2
3
7
4
4
1
7
1
1
3
3
1
3
5
3
15
3
2
1
4
4
1
1
4
4
1
2
7
2
Reservoir Cleaning