c-- ccc cce ccf ccl ccs cct ccu ce- cec cee cef cel ces cet ceu cfc cfe cff cfl cfs cft cfu cl- clc cle clf cll cls clt clu csc cse csf csl css cst csu ctc cte ctf ctl cts ctt ctu cuc cue cuf cul cus cut cuu ec- ecc ece ecf ecl ecs ect ecu eec eee eef eel ees eet ef- efc efe eff efl efs eft elc ele elf ell els elt elu es- esc ese esf esl ess est esu etc ete etf etl ets ett etu eu- euc eue euf eul eus eut fcc fce fcf fcl fcs fct fcu fec fee fef fel fes fet feu ffc ffe fff ffl ffs fft ffu flc fle flf fll fls flt flu fsc fse fsf fsl fss fst fsu ftc fte ftf ftl fts ftt ftu fue fuf ful fus fut fuu lcc lce lcf lcl lcs lct lcu lec lee lef lel les let leu lfc lfe lff lfl lfs lft lfu llc lle llf lll lls llt llu lsc lse lsf lsl lss lst lsu ltc lte ltf ltl lts ltt ltu luc lue luf lul lus lut luu scc sce scf scl scs sct scu se- sec see sef sel ses set seu sfc sfe sff sfl sfs sft sfu slc sle slf sll sls slt slu ss- ssc sse ssf ssl sss sst ssu stc ste stf stl sts stt stu suc sue suf sul sus sut suu tcc tce tcf tcl tcs tct tcu te- tec tee tef tel tes tet teu tfc tfe tff tfl tfs tft tfu tlc tle tlf tll tls tlt tlu tsc tse tsf tsl tss tst tsu ttc tte ttf ttl tts ttt ttu tuc tue tuf tul tus tut tuu ucc uce ucf ucl ucs uct ucu uec uee uef uel ues uet ufc ufe uff ufl ufs uft ufu ulc ule ulf ull uls ult ulu usc use usf usl uss ust usu utc ute utf utl uts utt utu uuc uue uus uut uuu