-er -th a-a a-b a-c a-t aaa aab aac aae aag aah aam aar aat ab- aba abb abc abe abg abh abm abr abt ac- aca acb acc ace acg ach acm acr act aea aeb aec aee aeg aeh aem aer aet ag- aga agb agc age agg agh agm agr agt aha ahb ahc ahe ahg ahh ahm ahr aht ama amb amc ame amg amh amm amr amt ar- ara arb arc are arg arh arm arr art at- ata atb atc ate atg ath atm atr att baa bab bac bae bag bah bam bar bat bba bbb bbc bbe bbg bbh bbm bbr bbt bca bcb bcc bce bcg bch bcm bcr bct be- bea beb bec bee beg beh bem ber bet bga bgb bgc bge bgg bgh bgm bgr bgt bha bhb bhc bhe bhg bhh bhm bhr bht bma bmb bmc bme bmg bmh bmm bmr bmt bra brb bre brg brh brm brr brt bta btb btc bte btg bth btm btr btt c-- caa cab cac cae cag cah cam car cat cba cbb cbc cbe cbg cbh cbm cbr cbt cca ccb ccc cce ccg cch ccm ccr cct ce- cea ceb cec cee ceg ceh cem cer cet cga cgb cgc cge cgg cgh cgm cgr cgt ch- cha chb chc che chg chh chm chr cht cma cmb cmc cme cmg cmh cmm cmr cmt cra crb crc cre crg crh crm crr crt cta ctb ctc cte ctg cth ctm ctr ctt eaa eab eac eae eag eah eam ear eat eba ebb ebc ebe ebg ebh ebm ebr ebt ec- eca ecb ecc ece ecg ech ecm ecr ect eea eeb eec eee eeg eem eer eet ega egb egc ege egg egh egm egr egt eha ehb ehc ehe ehg ehh ehm ehr eht em- ema emb emc eme emg emh emm emr emt era erb erc ere erg erh erm err ert eta etb etc ete etg eth etm etr ett gaa gab gac gae gag gah gam gar gat gba gbc gbe gbg gbh gbm gbr gbt gca gcb gcc gce gcg gch gcm gcr gct ge- gea geb gec gee geg geh gem ger get gga ggb ggc ggg ggh ggm ggr ggt gha ghb ghc ghe ghg ghh ghr ght gma gmb gmc gme gmg gmh gmm gmr gmt gra grb grc gre grg grh grm grr grt gta gtb gtc gte gtg gth gtm gtr gtt haa hab hac hae hag hah ham har hat hba hbb hbc hbe hbg hbh hbm hbr hbt hca hcb hcc hce hcg hch hcm hcr hct he- hea heb hec hee heg heh hem her het hga hgb hgc hge hgg hgh hgm hgr hgt hha hhb hhc hhe hhg hhh hhm hhr hht hma hmb hmc hme hmg hmh hmm hmr hmt hr- hra hrb hrc hre hrg hrh hrm hrr hrt hta htb htc hte htg hth htm htr htt m-r maa mab mac mae mag mah mam mar mat mba mbb mbc mbe mbg mbh mbm mbr mbt mc- mca mcb mcc mce mcg mch mcm mcr mct mea meb mec mee meg meh mem mer met mga mgb mgc mge mgh mgm mgr mgt mha mhc mhg mhh mhm mhr mht mma mmb mmc mme mmg mmh mmm mmr mmt mra mrb mrc mre mrg mrh mrm mrr mrt mta mtb mtc mte mtg mth mtm mtr mtt ra- raa rab rac rae rag rah ram rar rat rba rbb rbc rbe rbg rbh rbm rbr rbt rca rcb rcc rce rcg rch rcm rcr rct re- rea reb rec ree reg reh rem rer ret rga rgb rgc rge rgg rgh rgr rgt rh- rha rhb rhc rhe rhg rhh rhm rhr rht rma rmb rmc rme rmg rmh rmm rmr rmt rra rrb rrc rrg rrh rrm rrr rrt rta rtb rtc rte rtg rtm rtr rtt taa tab tac tae tag tah tam tar tat tba tbb tbc tbe tbg tbh tbm tbr tbt tca tcb tcc tce tcg tch tcm tcr tct te- tea teb tec tee teg teh tem ter tet tga tgb tgc tge tgg tgh tgm tgr tgt th- tha thb thc the thg thh thm thr tht tma tmb tmc tme tmg tmh tmm tmr tmt tra trb trc tre trg trh trm trr trt tta ttb ttc tte ttg tth ttm ttr ttt