-th a-a a-b a-c a-t aaa aab aac aae aah aaj aao aas aat ab- aba abb abc abe abh abj abo abs abt ac- aca acb acc ace ach acj aco acs act aea aeb aec aee aeh aej aeo aes aet aha ahb ahc ahe ahh ahj aho ahs aht aja ajb ajc aje ajh ajj ajo ajs ajt aoa aob aoc aoe aoh aoj aoo aos aot as- asa asb asc ase ash asj aso ass ast at- ata atb atc ate ath ato ats att baa bab bac bae bah baj bao bas bat bba bbb bbc bbe bbh bbo bbs bbt bca bcb bcc bce bch bcj bco bcs bct be- bea beb bec bee beh beo bes bet bha bhb bhc bhe bhh bhj bho bhs bht bja bjc bjj bjs bjt boa bob boc boe boh boj boo bos bot bsa bsb bsc bse bsh bsj bso bss bst bta btb btc bte bth bto bts btt c-- c-j caa cab cac cae cah caj cao cas cat cba cbb cbc cbe cbh cbj cbo cbs cbt cca ccb ccc cce cch ccj cco ccs cct ce- cea ceb cec cee ceh cej ceo ces cet ch- cha chb chc che chh cho chs cht cja cjb cjc cjs co- coa cob coc coe coh coj coo cos cot csa csb csc cse csh csj cso css cst cta ctb ctc cte cth cto cts ctt eaa eab eac eae eah eaj eao eas eat eba ebb ebc ebe ebh ebj ebo ebs ebt ec- eca ecb ecc ece ech ecj eco ecs ect eea eeb eec eee eeo ees eet eha ehb ehc ehe ehh eho ehs eht eja ejc ejo ejt eo- eoa eob eoc eoe eoh eoo eos eot es- esa esb esc ese esh eso ess est eta etb etc ete eth etj eto ets ett haa hab hac hae hah haj hao has hat hba hbb hbc hbe hbh hbj hbo hbs hbt hca hcb hcc hce hch hcj hco hcs hct he- hea heb hec hee heh hej heo hes het hha hhb hhc hhe hhh hhj hho hhs hht hja hjo hjs hjt hoa hob hoc hoe hoh hoo hos hot hsa hsb hsc hse hsh hsj hss hst hta htb htc hte hth htj hto hts htt jaa jab jac jae jah jaj jao jas jat jba jbc jbj jbo jbs jbt jca jcb jcc jce jch jco jcs jct jea jeb jec jee jeh jej jeo jes jet jha jhc jhe jhj jho jhs jht jja jjb jjc jjj jjs joa job joc joe joh joj joo jos jot jsa jsb jsc jse jsh jsj jso jss jst jta jtb jtc jte jth jts jtt oaa oab oac oae oah oaj oao oas oat ob- oba obb obc obe obh obj obo obs obt oc- oca ocb occ och ocj oco ocs oct oea oeb oec oee oeh oeo oes oet oha ohc ohe ohh oho ohs oht oja ojb ojc oje ojo ojs oo- ooa oob ooc ooh ooo oos oot os- osa osb osc ose osh osj oso oss ost ot- ota otb otc ote oth oto ots ott saa sab sac sae sah saj sao sas sat sba sbb sbc sbe sbh sbj sbo sbs sbt sca scb scc sce sch scj sco scs sct se- sea seb sec see seh sej seo ses set sh- sha shb shc she shh sho shs sht sja sjb sjc sje sjh sjj sjs sjt soa sob soc soe soh soj soo sos sot ss- ssa ssb ssc sse ssh ssj sso sss sst sta stb stc ste sth stj sto sts stt taa tab tac tae tah taj tao tas tat tba tbb tbc tbe tbh tbj tbo tbs tbt tca tcb tcc tce tch tcj tco tcs tct te- tea teb tec tee teh tej teo tes tet th- tha thb thc the thh tho ths tht tjc tje tjo tjs to- toa tob toc toe toh toj too tos tot tsa tsb tsc tse tsh tsj tso tss tst tta ttb ttc tte tth tto tts ttt