-th a-a a-b a-i a-t aaa aab aae aag aah aai aas aat ab- aba abb abe abg abh abi abs abt aea aeb aee aeg aeh aei aes aet ag- aga agb age agg agh agi ags agt aha ahb ahe ahg ahh ahi ahs aht ai- aia aib aie aig aih aii ais ait as- asa asb ase asg ash asi ass ast at- ata atb ate atg ath ati ats att baa bab bae bag bah bai bas bat bba bbb bbe bbg bbh bbi bbs bbt be- bea beb bee beg beh bei bes bet bga bgb bge bgg bgh bgi bgs bgt bha bhb bhe bhg bhh bhi bhs bht bi- bia bib bie big bih bii bis bit bsa bsb bse bsg bsh bsi bss bst bta btb bte btg bth bti bts btt eaa eab eae eag eah eai eas eat eba ebb ebe ebg ebh ebi ebs ebt eea eeb eee eeg ees eet ega egb ege egg egh egi egs egt eha ehb ehe ehg ehh ehi ehs eht eia eib eie eig eii eis eit es- esa esb ese esg esh esi ess est eta etb ete etg eth eti ets ett gaa gab gae gag gah gai gas gat gba gbe gbg gbh gbi gbs gbt ge- gea geb gee geg geh gei ges get gga ggb ggg ggh ggi ggs ggt gha ghb ghe ghg ghh ghi ghs ght gia gib gie gig gih gii gis git gsa gsb gse gsg gsi gss gst gta gtb gte gtg gth gti gts gtt h-i haa hab hae hag hah hai has hat hba hbb hbe hbg hbh hbi hbs hbt he- hea heb hee heg heh hei hes het hga hgb hge hgg hgh hgi hgs hgt hha hhb hhe hhg hhh hhi hhs hht hia hib hie hig hih hii his hit hsa hsb hse hsg hsh hsi hss hst hta htb hte htg hth hti hts htt ia- iaa iab iae iag iah iai ias iat iba ibb ibe ibg ibh ibi ibs ibt ie- iea iee ieg iei ies iet iga igb ige igg igh igi igs igt iha ihb ihe ihg ihh ihi ihs iht iia iib iie iih iii iis iit is- isa isb ise isg ish isi iss ist ita itb ite itg ith iti its itt saa sab sae sag sah sai sas sat sba sbb sbe sbg sbh sbi sbs sbt se- sea seb see seg seh sei ses set sga sgb sge sgg sgh sgi sgs sgt sh- sha shb she shg shh shi shs sht sia sib sie sig sih sii sis sit ss- ssa ssb sse ssg ssh ssi sss sst sta stb ste stg sth sti sts stt taa tab tae tag tah tai tas tat tba tbb tbe tbg tbh tbi tbs tbt te- tea teb tee teg teh tei tes tet tga tgb tge tgg tgh tgi tgs tgt th- tha thb the thg thh thi ths tht tia tib tie tig tih tii tis tit tsa tsb tse tsg tsh tsi tss tst tta ttb tte ttg tth tti tts ttt