b
g
b
fg
g

b
hfb

fb
n
ffb
g
fg
g
f
f
g
gfg
jg
fg
jfg
gj
fgg
ffgh
fvg
g
d
f
dfh
ff
dfh
fdf

df
fh
df
ff
df
fd
fghf
df
ghf
dfgdh
sf
fg
dghd
fgd
ffdghdf
dfdgh
dfd
fgdf
dff
gfd
fg
fffg
hf
gh