a-a a-b a-c aaa aab aac aag aah aam aan aar aau ab- aba abb abc abg abh abm abn abr abu ac- aca acb acc acg ach acm acn acr acu ag- aga agb agc agg agh agm agn agr agu aha ahb ahc ahg ahh ahm ahn ahr ahu ama amb amc amg amh amm amn amr amu an- ana anb anc ang anh anm ann anr anu ar- ara arb arc arg arh arm arn arr aru au- aua aub auc aug auh aum aun aur b-u baa bab bac bag bah bam ban bar bau bba bbb bbc bbg bbh bbm bbn bbr bbu bca bcb bcc bcg bch bcm bcn bcr bcu bga bgb bgc bgg bgh bgm bgn bgr bgu bha bhb bhc bhg bhh bhm bhr bhu bma bmb bmc bmg bmh bmm bmn bmr bmu bna bnb bnc bng bnn bnr bnu bra brb brg brh brm brn brr bru bua bub buc bug buh bum bun bur buu c-- caa cab cac cag cah cam can car cau cba cbb cbc cbg cbh cbm cbn cbr cbu cca ccb ccc ccg cch ccm ccn ccr ccu cga cgb cgc cgg cgh cgm cgn cgr cgu ch- cha chb chc chg chh chm chn chr chu cma cmb cmc cmg cmh cmm cmn cmr cmu cn- cna cnb cnc cng cnh cnm cnn cnr cnu cra crb crc crg crh crm crn crr cru cua cub cuc cug cuh cum cun cur cuu gaa gab gac gag gah gam gan gar gau gba gbc gbg gbh gbm gbn gbr gbu gca gcb gcc gcg gch gcm gcn gcr gcu gga ggb ggc ggg ggh ggm ggn ggr ggu gha ghb ghc ghg ghh ghn ghr gma gmb gmc gmg gmh gmm gmn gmr gna gnb gnc gnm gnn gnr gnu gra grb grc grg grh grm grn grr gru gu- gua gub guc gug gum gun gur guu haa hab hac hag hah ham han har hau hba hbb hbc hbg hbh hbm hbn hbr hbu hca hcb hcc hcg hch hcm hcn hcr hga hgb hgc hgg hgh hgm hgn hgr hgu hha hhb hhc hhg hhh hhm hhn hhr hhu hma hmb hmc hmg hmh hmm hmr hmu hna hnb hnc hng hnh hnn hnu hr- hra hrb hrc hrg hrh hrm hrn hrr hru hua hub huc hug huh hum hun hur huu m-r maa mab mac mag mah mam man mar mau mba mbb mbc mbg mbh mbm mbr mbu mc- mca mcb mcc mcg mch mcm mcn mcr mcu mga mgb mgc mgh mgm mgn mgr mgu mha mhc mhg mhh mhm mhn mhr mhu mma mmb mmc mmg mmh mmm mmn mmr mmu mna mnb mnc mng mnm mnn mnr mnu mra mrb mrc mrg mrh mrm mrn mrr mru mua mub muc mug muh mum mun mur muu naa nab nac nag nah nam nan nar nau nba nbb nbc nbg nbm nbn nbr nbu nca ncb ncc ncg nch ncm ncn ncr ncu nga ngb ngc ngg ngh ngm ngn ngu nha nhb nhc nhg nhh nhm nhn nhr nhu nma nmb nmc nmg nmh nmm nmn nmr nmu nna nnb nnc nng nnh nnm nnn nnu nra nrb nrc nrg nrm nrn nrr nru nua nub nuc nug nuh num nun nur nuu ra- raa rab rac rag rah ram ran rar rau rba rbb rbc rbg rbh rbm rbn rbr rbu rca rcb rcc rcg rch rcm rcn rcr rcu rga rgb rgc rgg rgh rgn rgr rh- rha rhb rhc rhg rhh rhm rhn rhr rhu rma rmb rmc rmg rmh rmm rmn rmr rna rnb rnc rng rnh rnm rnn rnr rnu rra rrb rrc rrg rrh rrm rrn rrr rru rua rub ruc rug ruh rum run rur ruu ua- uaa uab uac uag uah uam uan uar uau uba ubb ubc ubg ubh ubn ubr ubu uca ucb ucc ucg uch ucm ucn ucr ucu uga ugb ugc ugg ugh ugm ugn ugr ugu uha uhb uhc uhh uhm uhr uhu um- uma umb umc umg umh umm umn umr umu un- una unb unc ung unh unm unn unr unu ur- ura urb urc urg urm urn urr uru uua uuc uug uum uun uur uuu