-th a-a a-b a-t aaa aab aae aag aah aao aas aat ab- aba abb abe abg abh abo abs abt aea aeb aee aeg aeh aeo aes aet ag- aga agb age agg agh ago ags agt aha ahb ahe ahg ahh aho ahs aht aoa aob aoe aog aoh aoo aos aot as- asa asb ase asg ash aso ass ast at- ata atb ate atg ath ato ats att baa bab bae bag bah bao bas bat bba bbb bbe bbg bbh bbo bbs bbt be- bea beb bee beg beh beo bes bet bga bgb bge bgg bgh bgo bgs bgt bha bhb bhe bhg bhh bho bhs bht boa bob boe bog boh boo bos bot bsa bsb bse bsg bsh bso bss bst bta btb bte btg bth bto bts btt eaa eab eae eag eah eao eas eat eba ebb ebe ebg ebh ebo ebs ebt eea eeb eee eeg eeo ees eet ega egb ege egg egh ego egs egt eha ehb ehe ehg ehh eho ehs eht eo- eoa eob eoe eog eoh eoo eos eot es- esa esb ese esg esh eso ess est eta etb ete etg eth eto ets ett gaa gab gae gag gah gao gas gat gba gbe gbg gbh gbo gbs gbt ge- gea geb gee geg geh geo ges get gga ggb ggg ggh ggo ggs ggt gha ghb ghe ghg ghh gho ghs ght goa gob goe gog goh goo gos got gsa gsb gse gsg gso gss gst gta gtb gte gtg gth gto gts gtt haa hab hae hag hah hao has hat hba hbb hbe hbg hbh hbo hbs hbt he- hea heb hee heg heh heo hes het hga hgb hge hgg hgh hgo hgs hgt hha hhb hhe hhg hhh hho hhs hht hoa hob hoe hog hoh hoo hos hot hsa hsb hse hsg hsh hss hst hta htb hte htg hth hto hts htt oaa oab oae oag oah oao oas oat ob- oba obb obe obg obh obo obs obt oea oeb oee oeg oeh oeo oes oet oga oge ogg ogh ogo ogs ogt oha ohe ohg ohh oho ohs oht oo- ooa oob oog ooh ooo oos oot os- osa osb ose osg osh oso oss ost ot- ota otb ote otg oth oto ots ott saa sab sae sag sah sao sas sat sba sbb sbe sbg sbh sbo sbs sbt se- sea seb see seg seh seo ses set sga sgb sge sgg sgh sgo sgs sgt sh- sha shb she shg shh sho shs sht soa sob soe sog soh soo sos sot ss- ssa ssb sse ssg ssh sso sss sst sta stb ste stg sth sto sts stt taa tab tae tag tah tao tas tat tba tbb tbe tbg tbh tbo tbs tbt te- tea teb tee teg teh teo tes tet tga tgb tge tgg tgh tgo tgs tgt th- tha thb the thg thh tho ths tht to- toa tob toe tog toh too tos tot tsa tsb tse tsg tsh tso tss tst tta ttb tte ttg tth tto tts ttt