-er -ic -ol c-- ccc cce ccf cci cck ccl cco ccr cct ce- cec cee cef cei cek cel ceo cer cet cfc cfe cff cfi cfk cfl cfo cfr cft ci- cic cie cif cii cik cil cio cir cit ckc cki cko ckt cl- clc cle clf cli clk cll clo clr clt co- coc coe cof coi cok col coo cor cot crc cre crf cri crk crl cro crr crt ctc cte ctf cti ctk ctl cto ctr ctt ec- ecc ece ecf eci eck ecl eco ecr ect eec eee eef eek eel eeo eer eet ef- efc efe eff efi efl efo efr eft eic eie eif eii eik eil eio eir eit ekc eke ekf eki ekl eko ekr ekt elc ele elf eli elk ell elo elr elt eo- eoc eoe eof eoi eok eol eoo eor eot erc ere erf eri erk erl ero err ert etc ete etf eti etk etl eto etr ett fcc fce fcf fci fck fcl fco fcr fct fec fee fef fei fek fel feo fer fet ffc ffe fff ffi ffk ffl ffo ffr fft fic fie fif fii fik fil fir fit fkc fkf fki fkk fkl fkt flc fle flf fli fll flo flr flt foc foe fof foi fok fol foo for fot frc fre frf fri frk frl fro frr frt ftc fte ftf fti ftk ftl fto ftr ftt i-f icc ice icf ici ick icl ico icr ict ie- iec iee ief iei iek iel ier iet ifc ife iff ifi ifl ifo ifr ift iic iie iif iii iil iio iir iit ikc ike ikf iki ikk ikl iko ikr ikt il- ilc ile ilf ili ilk ill ilo ilr ilt io- ioc ioe iof ioi iol ioo ior iot ir- irc ire irf iri irk irl iro irr irt itc ite itf iti itk itl ito itt k-t kcc kce kci kck kcl kcr kct ke- kec kee kef kei kek kel keo ker ket kfc kff kfi kfo kic kie kif kii kik kil kio kir kit kkc kke kki kkk kkl kkr kkt kl- klc klf kli klo klr klt koc koe kof koi kok kol koo kor kot krc krf kri krk krl kro krr krt ktc kte ktf ktk ktl kto ktr ktt lcc lce lcf lci lck lcl lco lcr lct lec lee lef lei lek lel leo ler let lfc lfe lff lfi lfk lfl lfo lfr lft lic lie lif lii lik lil lio lir lit lkl lkr lkt llc lle llf lli llk lll llo llr llt loc loe lof loi lok lol loo lor lot lrc lrf lri lrk lro lrr lrt ltc lte ltf lti ltk ltl lto ltr ltt o-i oc- occ ocf oci ock ocl oco ocr oct oec oee oef oei oel oeo oer oet of- ofc ofe off ofi ofl ofo ofr oft oic oie oif oii oik oil oio oir oit okc oke oki okk okl oko okr olc ole olf oli olk oll olo olt oo- ooc oof ooi ook ool ooo oor oot or- orc ore orf ori ork orl oro orr ort ot- otc ote otf oti otk otl oto otr ott rcc rce rcf rci rcl rco rcr rct re- rec ree ref rei rek rel reo rer ret rfc rfe rff rfi rfk rfl rfo rfr rft ric rie rif rii rik ril rio rir rit rkc rke rkf rkk rko rkt rlc rle rlf rli rll rlo rlr rlt roc roe rof roi rok rol roo ror rot rrc rrf rri rrk rrl rrr rrt rtc rte rtf rti rtk rtl rto rtr rtt tcc tce tcf tci tck tcl tco tcr tct te- tec tee tef tei tek tel teo ter tet tfc tfe tff tfi tfk tfl tfo tfr tft tic tie tif tii tik til tio tir tit tkc tke tkk tkl tko tkr tkt tlc tle tlf tli tlk tll tlo tlr tlt to- toc toe tof toi tok tol too tor tot trc tre trf tri trk trl tro trr trt ttc tte ttf tti ttk ttl tto ttr ttt