f
0
1
f
0
4
f
0
1
f
0
1
f
0
1
f f f f
0
1
f
0
1
f
0
1
f
0
1
f
0
1
f
0
3
f
1
5
f
0
5
f f f
0
1
f
0
2
木f
0
13
f f
0
3