a-a a-b a-c a-t aaa aab aac aam aao aat aau aav ab- aba abb abc abm abo abt abu abv ac- aca acb acc acm aco act acu acv ama amb amc amm amo amt amu amv aoa aob aoc aom aoo aot aou aov at- ata atb atc atm ato att atu atv au- aua aub auc aum auo aut auv av- ava avb avc avm avo avt avu b-u baa bab bac bam bao bat bau bav bba bbb bbc bbm bbo bbt bbu bca bcb bcc bcm bco bct bcu bcv bma bmb bmc bmm bmo bmt bmu bmv boa bob boc bom boo bot bou bov bta btb btc btm bto btt btu btv bua bub buc bum buo but buu bva bvb bvc bvm bvo bvt bvu bvv c-- caa cab cac cam cao cat cau cav cba cbb cbc cbm cbo cbt cbu cbv cca ccb ccc ccm cco cct ccu ccv cma cmb cmc cmm cmo cmt cmu cmv co- coa cob coc com coo cot cou cov cta ctb ctc ctm cto ctt ctu ctv cua cub cuc cum cuo cut cuu cuv cva cvb cvc cvm cvo cvt cvu cvv m-o m-v maa mab mac mam mao mat mau mav mba mbb mbc mbm mbo mbt mbu mbv mc- mca mcb mcc mcm mco mct mcu mcv mma mmb mmc mmm mmo mmt mmu mmv moa mob moc mom moo mot mou mov mta mtb mtc mtm mto mtt mtu mtv mua mub muc mum mut muu mva mvb mvc mvm mvo mvt mvv oaa oab oac oam oao oat oau oav ob- oba obb obc obm obo obt obu obv oc- oca ocb occ ocm oco oct ocu ocv om- oma omb omc omm omo omt omu omv oo- ooa oob ooc oom ooo oot oov ot- ota otb otc otm oto ott otu otv ou- oua ouc oum ouo out ov- ova ovb ovc ovo ovv taa tab tac tam tao tat tau tav tba tbb tbc tbm tbo tbt tbu tbv tca tcb tcc tcm tco tct tcu tcv tma tmb tmc tmm tmo tmt tmu tmv to- toa tob toc tom too tot tou tov tta ttb ttc ttm tto ttt ttu ttv tua tub tuc tum tuo tut tuu tuv tva tvb tvc tvm tvo tvt tvu ua- uaa uab uac uam uao uat uau uav uba ubb ubc ubo ubt ubu ubv uca ucb ucc ucm uco uct ucu ucv um- uma umb umc umm umo umt umu uoa uob uoc uom uoo uot uta utb utc utm uto utt utu utv uua uuc uum uut uuu uva uvb uvc uvm uvo uvu uvv v-a vaa vab vac vam vao vat vau vav vba vbc vbm vbo vbv vca vcc vcm vco vct vcu vm- vma vmc vmm vmo vmt vmu voa vob voc vom voo vot vou vov vta vtb vtc vtm vto vtt vtu vtv vum vut vuv vva vvb vvc vvm vvo vvt vvv