-ol c-- ccc ccd cce cck ccl cco ccp cdc cdd cde cdk cdl cdo cdp ce- cec ced cee cek cel ceo cep ckc ckd cko cl- clc cld cle clk cll clo clp co- coc cod coe cok col coo cop cpc cpd cpe cpk cpl cpo cpp dcc dcd dce dck dcl dco dcp ddc ddd dde ddk ddl ddo ddp de- dec ded dee dek del deo dep dkc dke dkk dkl dko dkp dl- dlc dld dle dlk dll dlo dlp doc dod doe dok dol doo dop dpc dpd dpe dpk dpl dpo dpp ec- ecc ecd ece eck ecl eco ed- edc edd ede edk edl edo edp eec eed eee eek eel eeo eep ekc ekd eke ekl eko ekp elc eld ele elk ell elo elp eo- eoc eod eoe eok eol eoo eop ep- epc epd epe epl epo epp kcc kcd kce kck kcl kcp kdc kde kdk kdl kdo kdp ke- kec ked kee kek kel keo kep kkc kke kkk kkl kkp kl- klc kld klo koc kod koe kok kol koo kop kpc kpd kpe kpk kpl kpo kpp l-p lcc lcd lce lck lcl lco lcp ldc ldd lde ldk ldl ldo ldp lec led lee lek lel leo lep lkl lkp llc lld lle llk lll llo llp loc lod loe lok lol loo lop lpc lpd lpe lpk lpl lpo lpp oc- occ ocd ock ocl oco ocp odc odd ode odl odo odp oec oed oee oel oeo oep okc okd oke okk okl oko okp olc old ole olk oll olo olp oo- ooc ood ook ool ooo oop op- opc opd ope opk opl opo opp p-p pcc pcd pce pck pcl pco pcp pdc pdd pde pdk pdl pdo pdp pec ped pee pek pel peo pep pkc pkd pke pkl pko pkp plc pld ple plk pll plo plp poc pod poe pok pol poo pop ppc ppd ppe ppk ppl ppo ppp