b f h j g
1
8
g g b n h f
1
6
h
0
1
h
0
2
h
0
1
h
0
1
h
0
1
h
0
1
h
1
4
h
0
1
h
0
1
h
0
1
h
0
1
h
0
2
h
0
1
h
0
1
h
0
3
h
0
1
h
0
1
h
0
1
h
0
1
h
0
1