a-a a-c aaa aac aad aah aak aav ac- aca acc acd ach ack acv ad- ada adc add adh adk adv aha ahc ahd ahh ahk ahv aka akc akd akh akk akv av- ava avc avd avh avk c-- caa cac cad cah cak cav cca ccc ccd cch cck ccv cda cdc cdd cdh cdk cdv ch- cha chc chd chh chk chv cka ckc ckd ckh cva cvc cvd cvh cvk cvv daa dac dad dah dak dav dca dcc dcd dck dcv dda ddc ddd ddh ddk dh- dha dhc dhd dhh dhk dka dkc dkk dva dvc dvd dvh dvk haa hac had hah hak hav hca hcc hcd hch hck hcv hda hdc hdd hdh hdk hdv hha hhc hhd hhh hhk hhv hka hkd hkh hkk hv- hva hvc hvd hvk hvv ka- kaa kac kad kah kak kav kca kcc kcd kch kck kda kdc kdh kdk kha khh khk khv kkc kkh kkk kkv kva kvh kvk kvv v-a vaa vac vad vah vak vav vca vcc vcd vch vdc vdd vdh vdk vdv vh- vha vhc vhd vka vva vvc vvv