-ic a-a a-b a-c a-i aaa aab aac aai aak aav ab- aba abb abc abi abk abv ac- aca acb acc aci ack acv ai- aia aib aic aii aik aiv aka akb akc aki akk akv av- ava avb avc avi avk baa bab bac bai bak bav bba bbb bbc bbi bbk bca bcb bcc bci bck bcv bi- bia bib bic bii bik biv bka bkb bkc bkk bkv bva bvb bvc bvi bvk bvv c-- caa cab cac cai cak cav cba cbb cbc cbi cbk cbv cca ccb ccc cci cck ccv ci- cia cib cic cii cik civ cka ckb ckc cki cva cvb cvc cvi cvk cvv i-v ia- iaa iab iac iai iav iba ibb ibc ibi ibk ibv ica icb icc ici ick icv iia iib iic iii ika ikb ikc iki ikk ikv iva ivb ivc ivi ivv ka- kaa kab kac kai kak kav kba kbb kbc kbi kbk kca kcb kcc kci kck kia kib kic kii kik kiv kkb kkc kki kkk kkv kva kvb kvi kvk kvv v-a vaa vab vac vai vak vav vba vbc vbi vbk vbv vca vcc vci vi- via vib vic vii vik viv vka vkb vva vvb vvc vvi vvv