a-a a-c aaa aac aad aah aav ac- aca acc acd ach acv ad- ada adc add adh adv aha ahc ahd ahh ahv av- ava avc avd avh c-- caa cac cad cah cav cca ccc ccd cch ccv cda cdc cdd cdh cdv ch- cha chc chd chh chv cva cvc cvd cvh cvv daa dac dad dah dav dca dcc dcd dcv dda ddc ddd ddh dh- dha dhc dhd dhh dva dvc dvd dvh haa hac had hah hav hca hcc hcd hch hcv hda hdc hdd hdh hdv hha hhc hhd hhh hhv hv- hva hvc hvd hvv v-a vaa vac vad vah vav vca vcc vcd vch vdc vdd vdh vdv vh- vha vhc vhd vva vvc vvv