a-a a-c aaa aac aae aah aao aav ac- aca acc ace ach aco acv aea aec aee aeh aeo aev aha ahc ahe ahh aho ahv aoa aoc aoe aoh aoo aov av- ava avc ave avh avo c-- caa cac cae cah cao cav cca ccc cce cch cco ccv ce- cea cec cee ceh ceo cev ch- cha chc che chh cho chv co- coa coc coe coh coo cov cva cvc cve cvh cvo cvv eaa eac eae eah eao eav ec- eca ecc ece ech eco ecv eea eec eee eeo eev eha ehc ehe ehh eho ehv eo- eoa eoc eoe eoh eoo eva evc eve evh evo evv haa hac hae hah hao hav hca hcc hce hch hco hcv he- hea hec hee heh heo hev hha hhc hhe hhh hho hhv hoa hoc hoe hoh hoo hov hv- hva hvc hvo hvv oaa oac oae oah oao oav oc- oca occ och oco ocv oea oec oee oeh oeo oha ohc ohe ohh oho oo- ooa ooc ooh ooo oov ov- ova ovc ove ovh ovo ovv v-a v-e vaa vac vae vah vao vav vca vcc vce vch vco vea vec vee veh veo vh- vha vhc vhe vho voa voc voe voh voo vov vva vvc vvo vvv