0
______cc______cccccccccccc
_____cc_______cc________cc
____cc________cc________cc
___cc_________cc________cc
__cc__________cc________cc
_cc___cc______cc________cc
ccccccccccc___cc________cc
_____cc_______cccccccccccc
____cc______cc__ccc____ccccccc_____ccc____ccccccc
_____cc____cc__cc_cc___cc____cc___cc_cc___cc____cc
______cc__cc__cc___cc__cc_____cc_cc___cc__cc_____cc
_______cccc__cc_____cc_cc____cc_cc_____cc_cc____cc
________cc___cccccccccc_ccccccc___cccccccccc_ccccc
________cc___cc_____cc_cc______cc_____cc_cc____cc
________cc___cc_____cc_cc______cc_____cc_cc_____cc