-th a-a a-b a-c a-t aaa aab aac aag aah aan aar aat aay ab- aba abb abc abg abh abn abr abt aby ac- aca acb acc acg ach acn acr act acy ag- aga agb agc agg agh agn agr agt agy aha ahb ahc ahg ahh ahn ahr aht ahy an- ana anb anc ang anh ann anr ant any ar- ara arb arc arg arh arn arr art ary at- ata atb atc atg ath atn atr att ay- aya ayc ayh ayn ayr ayt baa bab bac bag bah ban bar bat bay bba bbb bbc bbg bbh bbn bbr bbt bby bca bcb bcc bcg bch bcn bcr bct bcy bga bgb bgc bgg bgh bgn bgr bgt bha bhb bhc bhg bhh bhr bht bna bnb bnc bng bnn bnr bnt bra brb brg brh brn brr brt bry bta btb btc btg bth btn btr btt bty by- bya byc byg byh byn byr byt c-- caa cab cac cag cah can car cat cay cba cbb cbc cbg cbh cbn cbr cbt cby cca ccb ccc ccg cch ccn ccr cct cga cgb cgc cgg cgh cgn cgr cgt cgy ch- cha chb chc chg chh chn chr cht chy cn- cna cnb cnc cng cnh cnn cnr cnt cny cra crb crc crg crh crn crr crt cry cta ctb ctc ctg cth ctn ctr ctt cty cya cyb cyc cyg cyn cyr cyt gaa gab gac gag gah gan gar gat gay gba gbc gbg gbh gbn gbr gbt gby gca gcb gcc gcg gch gcn gcr gct gga ggb ggc ggg ggh ggn ggr ggt gha ghb ghc ghg ghh ghn ghr ght gna gnb gnc gnn gnr gnt gra grb grc grg grh grn grr grt gry gta gtb gtc gtg gth gtn gtr gtt gty gy- gya gyb gyn gyr haa hab hac hag hah han har hat hay hba hbb hbc hbg hbh hbn hbr hbt hby hca hcb hcc hcg hch hcn hcr hct hcy hga hgb hgc hgg hgh hgn hgr hgt hgy hha hhb hhc hhg hhh hhn hhr hht hhy hna hnb hnc hng hnh hnn hnt hny hr- hra hrb hrc hrg hrh hrn hrr hrt hta htb htc htg hth htn htr htt hty hy- hya hyb hyc hyg hyh hyn hyr hyt hyy naa nab nac nag nah nan nar nat nay nba nbb nbc nbg nbn nbr nbt nca ncb ncc ncg nch ncn ncr nct nga ngb ngc ngg ngh ngn ngt nha nhb nhc nhg nhh nhn nhr nht nhy nna nnb nnc nng nnh nnn nnt nra nrb nrc nrg nrn nrr nrt nry nta ntb ntc ntg nth ntn ntr ntt nya nyc nyg nyn nyt nyy ra- raa rab rac rag rah ran rar rat ray rba rbb rbc rbg rbh rbn rbr rbt rca rcb rcc rcg rch rcn rcr rct rga rgb rgc rgg rgh rgn rgr rgt rh- rha rhb rhc rhg rhh rhn rhr rht rna rnb rnc rng rnh rnn rnr rnt rny rra rrb rrc rrg rrh rrn rrr rrt rta rtb rtc rtg rtn rtr rtt rty ry- rya ryc ryg ryn ryr ryy taa tab tac tag tah tan tar tat tay tba tbb tbc tbg tbh tbn tbr tbt tca tcb tcc tcg tch tcn tcr tct tga tgb tgc tgg tgh tgn tgr tgt tgy th- tha thb thc thg thh thn thr tht thy tna tnb tnc tng tnh tnn tnr tnt tra trb trc trg trh trn trr trt try tta ttb ttc ttg tth ttn ttr ttt tty tya tyc tyg tyn tyr tyt yaa yab yac yag yah yan yar yat yay ybc ybg ybr yby yca ycc ych ycy yga ygc yha yhc yht yna yng ynn yny yra yrc yrg yrn yrt yta ytc yth ytn ytr ytt yyb yyc yyg yyt yyy