vvvvvvvvgggggggggggggggggggggggggg
vvvvvvvvvvvgvvggggggggggggggggggggggggggg
0
0
0
1
vvvvvvvvvvvvvvv
v
v
2
ffffggggggggggggggggggggggggggggggggggg
ffffgggggggggggggggggg
fffggggggggggggggggggggggg
ffgggggggggggggggggg
ffgggggggggggggggg
3
gggggggg
gggggggggggggggggggggg
ggggggggggg
4
gggggggggggggggg
ggggggggggggggg
ggggggggggggg
5
gggggggggggggggggggggggggg
ggggggggggggggggg
gggggggggggggg
gggggggggggg
