-er -th a-a a-b a-c a-t aaa aab aac aae aah aam aar aat ab- aba abb abc abe abh abm abr abt ac- aca acb acc ace ach acm acr act aea aeb aec aee aeh aem aer aet aha ahb ahc ahe ahh ahm ahr aht ama amb amc ame amh amm amr amt ar- ara arb arc are arh arm arr art at- ata atb atc ate ath atm atr att baa bab bac bae bah bam bar bat bba bbb bbc bbe bbh bbm bbr bbt bca bcb bcc bce bch bcm bcr bct be- bea beb bec bee beh bem ber bet bha bhb bhc bhe bhh bhm bhr bht bma bmb bmc bme bmh bmm bmr bmt bra brb bre brh brm brr brt bta btb btc bte bth btm btr btt c-- caa cab cac cae cah cam car cat cba cbb cbc cbe cbh cbm cbr cbt cca ccb ccc cce cch ccm ccr cct ce- cea ceb cec cee ceh cem cer cet ch- cha chb chc che chh chm chr cht cma cmb cmc cme cmh cmm cmr cmt cra crb crc cre crh crm crr crt cta ctb ctc cte cth ctm ctr ctt eaa eab eac eae eah eam ear eat eba ebb ebc ebe ebh ebm ebr ebt ec- eca ecb ecc ece ech ecm ecr ect eea eeb eec eee eem eer eet eha ehb ehc ehe ehh ehm ehr eht em- ema emb emc eme emh emm emr emt era erb erc ere erh erm err ert eta etb etc ete eth etm etr ett haa hab hac hae hah ham har hat hba hbb hbc hbe hbh hbm hbr hbt hca hcb hcc hce hch hcm hcr hct he- hea heb hec hee heh hem her het hha hhb hhc hhe hhh hhm hhr hht hma hmb hmc hme hmh hmm hmr hmt hr- hra hrb hrc hre hrh hrm hrr hrt hta htb htc hte hth htm htr htt m-r maa mab mac mae mah mam mar mat mba mbb mbc mbe mbh mbm mbr mbt mc- mca mcb mcc mce mch mcm mcr mct mea meb mec mee meh mem mer met mha mhc mhh mhm mhr mht mma mmb mmc mme mmh mmm mmr mmt mra mrb mrc mre mrh mrm mrr mrt mta mtb mtc mte mth mtm mtr mtt ra- raa rab rac rae rah ram rar rat rba rbb rbc rbe rbh rbm rbr rbt rca rcb rcc rce rch rcm rcr rct re- rea reb rec ree reh rem rer ret rh- rha rhb rhc rhe rhh rhm rhr rht rma rmb rmc rme rmh rmm rmr rmt rra rrb rrc rrh rrm rrr rrt rta rtb rtc rte rtm rtr rtt taa tab tac tae tah tam tar tat tba tbb tbc tbe tbh tbm tbr tbt tca tcb tcc tce tch tcm tcr tct te- tea teb tec tee teh tem ter tet th- tha thb thc the thh thm thr tht tma tmb tmc tme tmh tmm tmr tmt tra trb trc tre trh trm trr trt tta ttb ttc tte tth ttm ttr ttt