-th a-a a-b a-c a-t aaa aab aac aae aah aam aas aat ab- aba abb abc abe abh abm abs abt ac- aca acb acc ace ach acm acs act aea aeb aec aee aeh aem aes aet aha ahb ahc ahe ahh ahm ahs aht ama amb amc ame amh amm ams amt as- asa asb asc ase ash asm ass ast at- ata atb atc ate ath atm ats att baa bab bac bae bah bam bas bat bba bbb bbc bbe bbh bbm bbs bbt bca bcb bcc bce bch bcm bcs bct be- bea beb bec bee beh bem bes bet bha bhb bhc bhe bhh bhm bhs bht bma bmb bmc bme bmh bmm bms bmt bsa bsb bsc bse bsh bsm bss bst bta btb btc bte bth btm bts btt c-- caa cab cac cae cah cam cas cat cba cbb cbc cbe cbh cbm cbs cbt cca ccb ccc cce cch ccm ccs cct ce- cea ceb cec cee ceh cem ces cet ch- cha chb chc che chh chm chs cht cma cmb cmc cme cmh cmm cms cmt csa csb csc cse csh csm css cst cta ctb ctc cte cth ctm cts ctt eaa eab eac eae eah eam eas eat eba ebb ebc ebe ebh ebm ebs ebt ec- eca ecb ecc ece ech ecm ecs ect eea eeb eec eee eem ees eet eha ehb ehc ehe ehh ehm ehs eht em- ema emb emc eme emh emm ems emt es- esa esb esc ese esh esm ess est eta etb etc ete eth etm ets ett haa hab hac hae hah ham has hat hba hbb hbc hbe hbh hbm hbs hbt hca hcb hcc hce hch hcm hcs hct he- hea heb hec hee heh hem hes het hha hhb hhc hhe hhh hhm hhs hht hma hmb hmc hme hmh hmm hms hmt hsa hsb hsc hse hsh hsm hss hst hta htb htc hte hth htm hts htt maa mab mac mae mah mam mas mat mba mbb mbc mbe mbh mbm mbs mbt mc- mca mcb mcc mce mch mcm mcs mct mea meb mec mee meh mem mes met mha mhc mhh mhm mhs mht mma mmb mmc mme mmh mmm mms mmt msa msb msc mse msh msm mss mst mta mtb mtc mte mth mtm mts mtt saa sab sac sae sah sam sas sat sba sbb sbc sbe sbh sbm sbs sbt sca scb scc sce sch scm scs sct se- sea seb sec see seh sem ses set sh- sha shb shc she shh shm shs sht sma smb smc sme smh smm sms smt ss- ssa ssb ssc sse ssh ssm sss sst sta stb stc ste sth stm sts stt taa tab tac tae tah tam tas tat tba tbb tbc tbe tbh tbm tbs tbt tca tcb tcc tce tch tcm tcs tct te- tea teb tec tee teh tem tes tet th- tha thb thc the thh thm ths tht tma tmb tmc tme tmh tmm tms tmt tsa tsb tsc tse tsh tsm tss tst tta ttb ttc tte tth ttm tts ttt