a-a a-b a-i aaa aab aae aag aai aak aam aav ab- aba abb abe abg abi abk abm abv aea aeb aee aeg aei aek aem aev ag- aga agb age agg agi agk agm agv ai- aia aib aie aig aii aik aim aiv aka akb ake akg aki akk akm akv ama amb ame amg ami amk amm amv av- ava avb ave avg avi avk avm baa bab bae bag bai bak bam bav bba bbb bbe bbg bbi bbk bbm be- bea beb bee beg bei bek bem bev bga bgb bge bgg bgi bgk bgm bgv bi- bia bib bie big bii bik bim biv bka bkb bke bkg bkk bkm bkv bma bmb bme bmg bmi bmk bmm bmv bva bvb bve bvg bvi bvk bvm bvv eaa eab eae eag eai eak eam eav eba ebb ebe ebg ebi ebk ebm ebv eea eeb eee eeg eek eem eev ega egb ege egg egi egm eia eib eie eig eii eik eim eiv eka ekb eke ekg eki ekv em- ema emb eme emg emi emk emm emv eva evb eve evg evi evm evv gaa gab gae gag gai gak gam gav gba gbe gbg gbi gbk gbm gbv ge- gea geb gee geg gei gek gem gev gga ggb ggg ggi ggm ggv gia gib gie gig gii gik gim giv gka gkb gkm gma gmb gme gmg gmi gmm gmv gva gvb gve gvg gvi gvk gvm i-v ia- iaa iab iae iag iai iam iav iba ibb ibe ibg ibi ibk ibm ibv ie- iea iee ieg iei iek iem iev iga igb ige igg igi igk igm iia iib iie iii iim ika ikb ike iki ikk ikv im- ima imb ime img imi imm imv iva ivb ive ivg ivi ivv ka- kaa kab kae kag kai kak kam kav kba kbb kbe kbi kbk kbm ke- kea keb kee keg kei kek kem kev kga kgb kgi kgm kgv kia kib kie kig kii kik kim kiv kkb kke kki kkk kkm kkv kma kmb kme kmg kmi kmk kmm kva kvb kvi kvk kvm kvv m-v maa mab mae mag mai mak mam mav mba mbb mbe mbg mbi mbk mbm mbv mea meb mee meg mei mek mem mev mga mgb mge mgi mgk mgm mgv mi- mia mib mie mig mii mik mim miv mka mkb mke mkg mkk mkm mkv mma mmb mme mmg mmi mmk mmm mmv mva mvb mve mvg mvi mvm mvv v-a v-e vaa vab vae vag vai vak vam vav vba vbg vbi vbk vbm vbv vea veb vee veg vei vek vem vga vgg vgm vi- via vib vie vig vii vik vim viv vka vkb vkg vkm vm- vma vmi vmm vva vvb vvg vvi vvm vvv