c-- ccc ccl ccm cct ccu cl- clc cll clm clt clu cmc cml cmm cmt cmu ctc ctl ctm ctt ctu cuc cul cum cut cuu lcc lcl lcm lct lcu llc lll llm llt llu lmc lml lmm lmt lmu ltc ltl ltm ltt ltu luc lul lum lut luu mc- mcc mcl mcm mct mcu mlc mll mlm mlt mlu mmc mml mmm mmt mmu mtc mtl mtm mtt mtu muc mul mum mut muu tcc tcl tcm tct tcu tlc tll tlm tlt tlu tmc tml tmm tmt tmu ttc ttl ttm ttt ttu tuc tul tum tut tuu ucc ucl ucm uct ucu ulc ull ulm ult ulu um- umc uml umm umt umu utc utl utm utt utu uuc uum uut uuu