a-a a-b aaa aab aae aah aak aam aao ab- aba abb abe abh abk abm abo aea aeb aee aeh aek aem aeo aha ahb ahe ahh ahk ahm aho aka akb ake akh akk akm ako ama amb ame amh amk amm amo aoa aob aoe aoh aok aom aoo baa bab bae bah bak bam bao bba bbb bbe bbh bbk bbm bbo be- bea beb bee beh bek bem beo bha bhb bhe bhh bhk bhm bho bka bkb bke bkk bkm bko bma bmb bme bmh bmk bmm bmo boa bob boe boh bok bom boo eaa eab eae eah eak eam eao eba ebb ebe ebh ebk ebm ebo eea eeb eee eek eem eeo eha ehb ehe ehh ehm eho eka ekb eke ekh eko em- ema emb eme emh emk emm emo eo- eoa eob eoe eoh eok eom eoo haa hab hae hah hak ham hao hba hbb hbe hbh hbk hbm hbo he- hea heb hee heh hek hem heo hha hhb hhe hhh hhk hhm hho hka hkb hkh hkk hkm hko hma hmb hme hmh hmk hmm hmo hoa hob hoe hoh hok hom hoo ka- kaa kab kae kah kak kam kao kba kbb kbe kbh kbk kbm kbo ke- kea keb kee keh kek kem keo kha khe khh khk khm kho kkb kke kkh kkk kkm kma kmb kme kmh kmk kmm kmo koa kob koe koh kok kom koo m-o maa mab mae mah mak mam mao mba mbb mbe mbh mbk mbm mbo mea meb mee meh mek mem meo mha mhh mhk mhm mho mka mkb mke mkh mkk mkm mko mma mmb mme mmh mmk mmm mmo moa mob moe moh mok mom moo oaa oab oae oah oak oam oao ob- oba obb obe obh obk obm obo oea oeb oee oeh oem oeo oha ohe ohh ohm oho oka okb oke okk oko om- oma omb ome omh omm omo oo- ooa oob ooh ook oom ooo