-th a-a a-b a-c a-t aaa aab aac aah aam aas aat ab- aba abb abc abh abm abs abt ac- aca acb acc ach acm acs act aha ahb ahc ahh ahm ahs aht ama amb amc amh amm ams amt as- asa asb asc ash asm ass ast at- ata atb atc ath atm ats att baa bab bac bah bam bas bat bba bbb bbc bbh bbm bbs bbt bca bcb bcc bch bcm bcs bct bha bhb bhc bhh bhm bhs bht bma bmb bmc bmh bmm bms bmt bsa bsb bsc bsh bsm bss bst bta btb btc bth btm bts btt c-- caa cab cac cah cam cas cat cba cbb cbc cbh cbm cbs cbt cca ccb ccc cch ccm ccs cct ch- cha chb chc chh chm chs cht cma cmb cmc cmh cmm cms cmt csa csb csc csh csm css cst cta ctb ctc cth ctm cts ctt haa hab hac hah ham has hat hba hbb hbc hbh hbm hbs hbt hca hcb hcc hch hcm hcs hct hha hhb hhc hhh hhm hhs hht hma hmb hmc hmh hmm hms hmt hsa hsb hsc hsh hsm hss hst hta htb htc hth htm hts htt maa mab mac mah mam mas mat mba mbb mbc mbh mbm mbs mbt mc- mca mcb mcc mch mcm mcs mct mha mhc mhh mhm mhs mht mma mmb mmc mmh mmm mms mmt msa msb msc msh msm mss mst mta mtb mtc mth mtm mts mtt saa sab sac sah sam sas sat sba sbb sbc sbh sbm sbs sbt sca scb scc sch scm scs sct sh- sha shb shc shh shm shs sht sma smb smc smh smm sms smt ss- ssa ssb ssc ssh ssm sss sst sta stb stc sth stm sts stt taa tab tac tah tam tas tat tba tbb tbc tbh tbm tbs tbt tca tcb tcc tch tcm tcs tct th- tha thb thc thh thm ths tht tma tmb tmc tmh tmm tms tmt tsa tsb tsc tsh tsm tss tst tta ttb ttc tth ttm tts ttt