-th a-a a-b a-c a-t aaa aab aac aae aah aam aao aas aat ab- aba abb abc abe abh abm abo abs abt ac- aca acb acc ace ach acm aco acs act aea aeb aec aee aeh aem aeo aes aet aha ahb ahc ahe ahh ahm aho ahs aht ama amb amc ame amh amm amo ams amt aoa aob aoc aoe aoh aom aoo aos aot as- asa asb asc ase ash asm aso ass ast at- ata atb atc ate ath atm ato ats att baa bab bac bae bah bam bao bas bat bba bbb bbc bbe bbh bbm bbo bbs bbt bca bcb bcc bce bch bcm bco bcs bct be- bea beb bec bee beh bem beo bes bet bha bhb bhc bhe bhh bhm bho bhs bht bma bmb bmc bme bmh bmm bmo bms bmt boa bob boc boe boh bom boo bos bot bsa bsb bsc bse bsh bsm bso bss bst bta btb btc bte bth btm bto bts btt c-- caa cab cac cae cah cam cao cas cat cba cbb cbc cbe cbh cbm cbo cbs cbt cca ccb ccc cce cch ccm cco ccs cct ce- cea ceb cec cee ceh cem ceo ces cet ch- cha chb chc che chh chm cho chs cht cma cmb cmc cme cmh cmm cmo cms cmt co- coa cob coc coe coh com coo cos cot csa csb csc cse csh csm cso css cst cta ctb ctc cte cth ctm cto cts ctt eaa eab eac eae eah eam eao eas eat eba ebb ebc ebe ebh ebm ebo ebs ebt ec- eca ecb ecc ece ech ecm eco ecs ect eea eeb eec eee eem eeo ees eet eha ehb ehc ehe ehh ehm eho ehs eht em- ema emb emc eme emh emm emo ems emt eo- eoa eob eoc eoe eoh eom eoo eos eot es- esa esb esc ese esh esm eso ess est eta etb etc ete eth etm eto ets ett haa hab hac hae hah ham hao has hat hba hbb hbc hbe hbh hbm hbo hbs hbt hca hcb hcc hce hch hcm hco hcs hct he- hea heb hec hee heh hem heo hes het hha hhb hhc hhe hhh hhm hho hhs hht hma hmb hmc hme hmh hmm hmo hms hmt hoa hob hoc hoe hoh hom hoo hos hot hsa hsb hsc hse hsh hsm hss hst hta htb htc hte hth htm hto hts htt m-o maa mab mac mae mah mam mao mas mat mba mbb mbc mbe mbh mbm mbo mbs mbt mc- mca mcb mcc mce mch mcm mco mcs mct mea meb mec mee meh mem meo mes met mha mhc mhh mhm mho mhs mht mma mmb mmc mme mmh mmm mmo mms mmt moa mob moc moe moh mom moo mos mot msa msb msc mse msh msm mso mss mst mta mtb mtc mte mth mtm mto mts mtt oaa oab oac oae oah oam oao oas oat ob- oba obb obc obe obh obm obo obs obt oc- oca ocb occ och ocm oco ocs oct oea oeb oec oee oeh oem oeo oes oet oha ohc ohe ohh ohm oho ohs oht om- oma omb omc ome omh omm omo oms omt oo- ooa oob ooc ooh oom ooo oos oot os- osa osb osc ose osh osm oso oss ost ot- ota otb otc ote oth otm oto ots ott saa sab sac sae sah sam sao sas sat sba sbb sbc sbe sbh sbm sbo sbs sbt sca scb scc sce sch scm sco scs sct se- sea seb sec see seh sem seo ses set sh- sha shb shc she shh shm sho shs sht sma smb smc sme smh smm smo sms smt soa sob soc soe soh som soo sos sot ss- ssa ssb ssc sse ssh ssm sso sss sst sta stb stc ste sth stm sto sts stt taa tab tac tae tah tam tao tas tat tba tbb tbc tbe tbh tbm tbo tbs tbt tca tcb tcc tce tch tcm tco tcs tct te- tea teb tec tee teh tem teo tes tet th- tha thb thc the thh thm tho ths tht tma tmb tmc tme tmh tmm tmo tms tmt to- toa tob toc toe toh tom too tos tot tsa tsb tsc tse tsh tsm tso tss tst tta ttb ttc tte tth ttm tto tts ttt