-er -ic -ol c-- ccc cce cch cci cck ccl cco ccr ce- cec cee ceh cei cek cel ceo cer ch- chc che chh chi chk chl cho chr ci- cic cie cih cii cik cil cio cir ckc ckh cki cko cl- clc cle clh cli clk cll clo clr co- coc coe coh coi cok col coo cor crc cre crh cri crk crl cro crr ec- ecc ece ech eci eck ecl eco ecr eec eee eek eel eeo eer ehc ehe ehh ehi ehl eho ehr eic eie eii eik eil eio eir ekc eke ekh eki ekl eko ekr elc ele elh eli elk ell elo elr eo- eoc eoe eoh eoi eok eol eoo eor erc ere erh eri erk erl ero err h-i hcc hce hch hci hck hcl hco hcr he- hec hee heh hei hek hel heo her hhc hhe hhh hhi hhk hhl hho hhr hic hie hih hii hik hil hio hir hkh hki hkk hkl hko hkr hlc hle hlh hli hll hlo hlr hoc hoe hoh hoi hok hol hoo hor hr- hrc hre hrh hri hrk hrl hro hrr icc ice ich ici ick icl ico icr ie- iec iee iei iek iel ier ihc ihe ihh ihi ihk ihl iho ihr iic iie iih iii iil iio iir ikc ike iki ikk ikl iko ikr il- ilc ile ilh ili ilk ill ilo ilr io- ioc ioe ioh ioi iol ioo ior ir- irc ire iri irk irl iro irr kcc kce kch kci kck kcl kcr ke- kec kee keh kei kek kel keo ker khe khh khi khk kho khr kic kie kih kii kik kil kio kir kkc kke kkh kki kkk kkl kkr kl- klc klh kli klo klr koc koe koh koi kok kol koo kor krc kri krk krl kro krr lcc lce lch lci lck lcl lco lcr lec lee leh lei lek lel leo ler lhc lhh lhi lhk lho lhr lic lie lih lii lik lil lio lir lkh lkl lkr llc lle lli llk lll llo llr loc loe loh loi lok lol loo lor lrc lrh lri lrk lro lrr o-i oc- occ och oci ock ocl oco ocr oec oee oeh oei oel oeo oer ohc ohe ohh ohi ohl oho ohr oic oie oii oik oil oio oir okc oke oki okk okl oko okr olc ole oli olk oll olo oo- ooc ooh ooi ook ool ooo oor or- orc ore orh ori ork orl oro orr rcc rce rch rci rcl rco rcr re- rec ree reh rei rek rel reo rer rh- rhc rhe rhh rhi rhl rho rhr ric rie rih rii rik ril rio rir rkc rke rkk rko rlc rle rlh rli rll rlo rlr roc roe roh roi rok rol roo ror rrc rrh rri rrk rrl rrr