a-a a-c aaa aac aae aah aak aao aav ac- aca acc ace ach ack aco acv aea aec aee aeh aek aeo aev aha ahc ahe ahh ahk aho ahv aka akc ake akh akk ako akv aoa aoc aoe aoh aok aoo aov av- ava avc ave avh avk avo c-- caa cac cae cah cak cao cav cca ccc cce cch cck cco ccv ce- cea cec cee ceh cek ceo cev ch- cha chc che chh chk cho chv cka ckc ckh cko co- coa coc coe coh cok coo cov cva cvc cve cvh cvk cvo cvv eaa eac eae eah eak eao eav ec- eca ecc ece ech eck eco ecv eea eec eee eek eeo eev eha ehc ehe ehh eho ehv eka ekc eke ekh eko ekv eo- eoa eoc eoe eoh eok eoo eva evc eve evh evo evv haa hac hae hah hak hao hav hca hcc hce hch hck hco hcv he- hea hec hee heh hek heo hev hha hhc hhe hhh hhk hho hhv hka hkh hkk hko hoa hoc hoe hoh hok hoo hov hv- hva hvc hvk hvo hvv ka- kaa kac kae kah kak kao kav kca kcc kce kch kck ke- kea kec kee keh kek keo kev kha khe khh khk kho khv kkc kke kkh kkk kkv koa koc koe koh kok koo kva kvh kvk kvo kvv oaa oac oae oah oak oao oav oc- oca occ och ock oco ocv oea oec oee oeh oeo oha ohc ohe ohh oho oka okc oke okk oko oo- ooa ooc ooh ook ooo oov ov- ova ovc ove ovh ovo ovv v-a v-e vaa vac vae vah vak vao vav vca vcc vce vch vco vea vec vee veh vek veo vh- vha vhc vhe vho vka voa voc voe voh vok voo vov vva vvc vvo vvv