cccccccccccccccccccc
thanks for sharing
ccccccccccc
Cccccccccccc
Ccccccccccccccc
......................
Ccccccccccc
cccccccccccccc
vvvvvvvvvvvvvvvvvvvvvvvvvvvv
cccccccccccccccccccccccccccccccccccc