-ol c-- ccc cce cch cck ccl cco ce- cec cee ceh cek cel ceo ch- chc che chh chk chl cho ckc ckh cko cl- clc cle clh clk cll clo co- coc coe coh cok col coo ec- ecc ece ech eck ecl eco eec eee eek eel eeo ehc ehe ehh ehl eho ekc eke ekh ekl eko elc ele elh elk ell elo eo- eoc eoe eoh eok eol eoo hcc hce hch hck hcl hco he- hec hee heh hek hel heo hhc hhe hhh hhk hhl hho hkh hkk hkl hko hlc hle hlh hll hlo hoc hoe hoh hok hol hoo kcc kce kch kck kcl ke- kec kee keh kek kel keo khe khh khk kho kkc kke kkh kkk kkl kl- klc klh klo koc koe koh kok kol koo lcc lce lch lck lcl lco lec lee leh lek lel leo lhc lhh lhk lho lkh lkl llc lle llk lll llo loc loe loh lok lol loo oc- occ och ock ocl oco oec oee oeh oel oeo ohc ohe ohh ohl oho okc oke okk okl oko olc ole olk oll olo oo- ooc ooh ook ool ooo