a-a a-c aaa aac aah aak aav ac- aca acc ach ack acv aha ahc ahh ahk ahv aka akc akh akk akv av- ava avc avh avk c-- caa cac cah cak cav cca ccc cch cck ccv ch- cha chc chh chk chv cka ckc ckh cva cvc cvh cvk cvv haa hac hah hak hav hca hcc hch hck hcv hha hhc hhh hhk hhv hka hkh hkk hv- hva hvc hvk hvv ka- kaa kac kah kak kav kca kcc kch kck kha khh khk khv kkc kkh kkk kkv kva kvh kvk kvv v-a vaa vac vah vak vav vca vcc vch vh- vha vhc vka vva vvc vvv