a-a a-b a-c aaa aab aac aae aah aam aav ab- aba abb abc abe abh abm abv ac- aca acb acc ace ach acm acv aea aeb aec aee aeh aem aev aha ahb ahc ahe ahh ahm ahv ama amb amc ame amh amm amv av- ava avb avc ave avh avm baa bab bac bae bah bam bav bba bbb bbc bbe bbh bbm bca bcb bcc bce bch bcm bcv be- bea beb bec bee beh bem bev bha bhb bhc bhe bhh bhm bhv bma bmb bmc bme bmh bmm bmv bva bvb bvc bve bvh bvm bvv c-- caa cab cac cae cah cam cav cba cbb cbc cbe cbh cbm cbv cca ccb ccc cce cch ccm ccv ce- cea ceb cec cee ceh cem cev ch- cha chb chc che chh chm chv cma cmb cmc cme cmh cmm cmv cva cvb cvc cve cvh cvm cvv eaa eab eac eae eah eam eav eba ebb ebc ebe ebh ebm ebv ec- eca ecb ecc ece ech ecm ecv eea eeb eec eee eem eev eha ehb ehc ehe ehh ehm ehv em- ema emb emc eme emh emm emv eva evb evc eve evh evm evv haa hab hac hae hah ham hav hba hbb hbc hbe hbh hbm hbv hca hcb hcc hce hch hcm hcv he- hea heb hec hee heh hem hev hha hhb hhc hhe hhh hhm hhv hma hmb hmc hme hmh hmm hmv hv- hva hvb hvc hvm hvv m-v maa mab mac mae mah mam mav mba mbb mbc mbe mbh mbm mbv mc- mca mcb mcc mce mch mcm mcv mea meb mec mee meh mem mev mha mhc mhh mhm mhv mma mmb mmc mme mmh mmm mmv mva mvb mvc mve mvm mvv v-a v-e vaa vab vac vae vah vam vav vba vbc vbh vbm vbv vca vcc vce vch vcm vea veb vec vee veh vem vh- vha vhb vhc vhe vm- vma vmc vmm vva vvb vvc vvm vvv