-------kkkkkk----------kbbbbbk---
kkkkk-kkbbbbk--kkk-----kbkkkkk---
kkbbk--kbkkkk-kbbk-----kbk-------
kkbkkkkkbkkkkkkbkkkkkkkkbkkkkkkkk
--bb----bb-----bb-------bb-------
kkkbkkkkkbkkkkkkbkkkkkkkkbkkkkkkk
-kbbk---kbkkkkkkbk------kbk------
--kkkkkkkbkbbbbbbk------kbk------
-----kbbbbkkkkkkkkkkkkkkkbk------
-----kkkkkkbbbbbbbbbbbbbbbk------
32 5
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