-ol c-- ccc cce ccf cck ccl cco ccs cct ce- cec cee cef cek cel ceo ces cet cfc cfe cff cfk cfl cfo cfs cft ckc cko cks ckt cl- clc cle clf clk cll clo cls clt co- coc coe cof cok col coo cos cot csc cse csf csk csl cso css cst ctc cte ctf ctk ctl cto cts ctt ec- ecc ece ecf eck ecl eco ecs ect eec eee eef eek eel eeo ees eet ef- efc efe eff efl efo efs eft ekc eke ekf ekl eko eks ekt elc ele elf elk ell elo els elt eo- eoc eoe eof eok eol eoo eos eot es- esc ese esf esk esl eso ess est etc ete etf etk etl eto ets ett fcc fce fcf fck fcl fco fcs fct fec fee fef fek fel feo fes fet ffc ffe fff ffk ffl ffo ffs fft fkc fkf fkk fkl fkt flc fle flf fll flo fls flt foc foe fof fok fol foo fos fot fsc fse fsf fsk fsl fso fss fst ftc fte ftf ftk ftl fto fts ftt k-t kcc kce kck kcl kcs kct ke- kec kee kef kek kel keo kes ket kfc kff kfo kfs kkc kke kkk kkl kks kkt kl- klc klf klo kls klt koc koe kof kok kol koo kos kot ksc kse ksf ksk ksl kso kss kst ktc kte ktf ktk ktl kto kts ktt lcc lce lcf lck lcl lco lcs lct lec lee lef lek lel leo les let lfc lfe lff lfk lfl lfo lfs lft lkl lks lkt llc lle llf llk lll llo lls llt loc loe lof lok lol loo los lot lsc lse lsf lsk lsl lso lss lst ltc lte ltf ltk ltl lto lts ltt oc- occ ocf ock ocl oco ocs oct oec oee oef oel oeo oes oet of- ofc ofe off ofl ofo ofs oft okc oke okk okl oko oks olc ole olf olk oll olo ols olt oo- ooc oof ook ool ooo oos oot os- osc ose osf osk osl oso oss ost ot- otc ote otf otk otl oto ots ott scc sce scf sck scl sco scs sct se- sec see sef sek sel seo ses set sfc sfe sff sfk sfl sfo sfs sft sk- skc ske skf skk skl sko sks skt slc sle slf slk sll slo sls slt soc soe sof sok sol soo sos sot ss- ssc sse ssf ssk ssl sso sss sst stc ste stf stk stl sto sts stt tcc tce tcf tck tcl tco tcs tct te- tec tee tef tek tel teo tes tet tfc tfe tff tfk tfl tfo tfs tft tkc tke tkk tkl tko tks tkt tlc tle tlf tlk tll tlo tls tlt to- toc toe tof tok tol too tos tot tsc tse tsf tsk tsl tso tss tst ttc tte ttf ttk ttl tto tts ttt