-th a-a a-b a-i a-t aaa aab aad aah aai aar aas aat ab- aba abb abd abh abi abr abs abt ad- ada adb add adh adi adr ads adt aha ahb ahd ahh ahi ahr ahs aht ai- aia aib aid aih aii air ais ait ar- ara arb ard arh ari arr ars art as- asa asb asd ash asi asr ass ast at- ata atb atd ath ati atr ats att baa bab bad bah bai bar bas bat bba bbb bbd bbh bbi bbr bbs bbt bda bdb bdd bdh bdi bdr bds bdt bha bhb bhd bhh bhi bhr bhs bht bi- bia bib bid bih bii bir bis bit bra brb brd brh bri brr brs brt bsa bsb bsd bsh bsi bsr bss bst bta btb btd bth bti btr bts btt daa dab dad dah dai dar das dat dba dbb dbd dbh dbi dbr dbs dbt dda ddb ddd ddh ddi ddr dds ddt dh- dha dhb dhd dhh dhi dhr dhs dht di- dia dib did dih dii dir dis dit dra drb drd dri drr drs drt dsa dsb dsd dsh dsi dsr dss dst dta dtb dtd dth dti dtr dts dtt h-i haa hab had hah hai har has hat hba hbb hbd hbh hbi hbr hbs hbt hda hdb hdd hdh hdi hdr hds hdt hha hhb hhd hhh hhi hhr hhs hht hia hib hid hih hii hir his hit hr- hra hrb hrd hrh hri hrr hrs hrt hsa hsb hsd hsh hsi hsr hss hst hta htb htd hth hti htr hts htt i-d ia- iaa iab iad iah iai iar ias iat iba ibb ibd ibh ibi ibr ibs ibt ida idb idd idh idi idr ids idt iha ihb ihd ihh ihi ihr ihs iht iia iib iid iih iii iir iis iit ir- ira irb ird iri irr irs irt is- isa isb isd ish isi isr iss ist ita itb itd ith iti its itt ra- raa rab rad rah rai rar ras rat rba rbb rbd rbh rbi rbr rbs rbt rda rdb rdd rdh rdi rdr rds rdt rh- rha rhb rhd rhh rhi rhr rhs rht ria rib rid rih rii rir ris rit rra rrb rrd rrh rri rrr rrs rrt rsa rsb rsd rsh rsi rsr rss rst rta rtb rtd rti rtr rts rtt saa sab sad sah sai sar sas sat sba sbb sbd sbh sbi sbr sbs sbt sda sdb sdd sdh sdi sdr sds sdt sh- sha shb shd shh shi shr shs sht sia sib sid sih sii sir sis sit sr- sra srb srd srh sri srr srs srt ss- ssa ssb ssd ssh ssi ssr sss sst sta stb std sth sti str sts stt taa tab tad tah tai tar tas tat tba tbb tbd tbh tbi tbr tbs tbt tda tdb tdd tdh tdi tdr tds tdt th- tha thb thd thh thi thr ths tht tia tib tid tih tii tir tis tit tra trb trd trh tri trr trs trt tsa tsb tsd tsh tsi tsr tss tst tta ttb ttd tth tti ttr tts ttt