a-a a-c aaa aac aah aav aay ac- aca acc ach acv acy aha ahc ahh ahv ahy av- ava avc avh avy ay- aya ayc ayh c-- caa cac cah cav cay cca ccc cch ccv ch- cha chc chh chv chy cva cvc cvh cvv cya cyc haa hac hah hav hay hca hcc hch hcv hcy hha hhc hhh hhv hhy hv- hva hvc hvv hvy hy- hya hyc hyh hyv hyy v-a vaa vac vah vav vay vca vcc vch vcy vh- vha vhc vva vvc vvv yaa yac yah yav yay yca ycc ych ycv ycy yha yhc yva yvy yyc yyy