-ic -th a-a a-b a-c a-i a-t aaa aab aac aah aai aao aar aas aat ab- aba abb abc abh abi abo abr abs abt ac- aca acb acc ach aci aco acr acs act aha ahb ahc ahh ahi aho ahr ahs aht ai- aia aib aic aih aii aio air ais ait aoa aob aoc aoh aoi aoo aor aos aot ar- ara arb arc arh ari aro arr ars art as- asa asb asc ash asi aso asr ass ast at- ata atb atc ath ati ato atr ats att baa bab bac bah bai bao bar bas bat bba bbb bbc bbh bbi bbo bbr bbs bbt bca bcb bcc bch bci bco bcr bcs bct bha bhb bhc bhh bhi bho bhr bhs bht bi- bia bib bic bih bii bio bir bis bit boa bob boc boh boi boo bor bos bot bra brb brh bri bro brr brs brt bsa bsb bsc bsh bsi bso bsr bss bst bta btb btc bth bti bto btr bts btt c-- caa cab cac cah cai cao car cas cat cba cbb cbc cbh cbi cbo cbr cbs cbt cca ccb ccc cch cci cco ccr ccs cct ch- cha chb chc chh chi cho chr chs cht ci- cia cib cic cih cii cio cir cis cit co- coa cob coc coh coi coo cor cos cot cra crb crc crh cri cro crr crs crt csa csb csc csh csi cso csr css cst cta ctb ctc cth cti cto ctr cts ctt h-i haa hab hac hah hai hao har has hat hba hbb hbc hbh hbi hbo hbr hbs hbt hca hcb hcc hch hci hco hcr hcs hct hha hhb hhc hhh hhi hho hhr hhs hht hia hib hic hih hii hio hir his hit hoa hob hoc hoh hoi hoo hor hos hot hr- hra hrb hrc hrh hri hro hrr hrs hrt hsa hsb hsc hsh hsi hsr hss hst hta htb htc hth hti hto htr hts htt ia- iaa iab iac iah iai iao iar ias iat iba ibb ibc ibh ibi ibo ibr ibs ibt ica icb icc ich ici ico icr ics ict iha ihb ihc ihh ihi iho ihr ihs iht iia iib iic iih iii iio iir iis iit io- ioa iob ioc ioh ioi ioo ior ios iot ir- ira irb irc iri iro irr irs irt is- isa isb isc ish isi iso isr iss ist ita itb itc ith iti ito its itt o-i oaa oab oac oah oai oao oar oas oat ob- oba obb obc obh obi obo obr obs obt oc- oca ocb occ och oci oco ocr ocs oct oha ohc ohh ohi oho ohr ohs oht oia oib oic oii oio oir ois oit oo- ooa oob ooc ooh ooi ooo oor oos oot or- ora orb orc orh ori oro orr ors ort os- osa osb osc osh osi oso osr oss ost ot- ota otb otc oth oti oto otr ots ott ra- raa rab rac rah rai rao rar ras rat rba rbb rbc rbh rbi rbo rbr rbs rbt rca rcb rcc rch rci rco rcr rcs rct rh- rha rhb rhc rhh rhi rho rhr rhs rht ria rib ric rih rii rio rir ris rit roa rob roc roh roi roo ror ros rot rra rrb rrc rrh rri rrr rrs rrt rsa rsb rsc rsh rsi rso rsr rss rst rta rtb rtc rti rto rtr rts rtt saa sab sac sah sai sao sar sas sat sba sbb sbc sbh sbi sbo sbr sbs sbt sca scb scc sch sci sco scr scs sct sh- sha shb shc shh shi sho shr shs sht sia sib sic sih sii sio sir sis sit soa sob soc soh soi soo sor sos sot sr- sra srb src srh sri sro srr srs srt ss- ssa ssb ssc ssh ssi sso ssr sss sst sta stb stc sth sti sto str sts stt taa tab tac tah tai tao tar tas tat tba tbb tbc tbh tbi tbo tbr tbs tbt tca tcb tcc tch tci tco tcr tcs tct th- tha thb thc thh thi tho thr ths tht tia tib tic tih tii tio tir tis tit to- toa tob toc toh toi too tor tos tot tra trb trc trh tri tro trr trs trt tsa tsb tsc tsh tsi tso tsr tss tst tta ttb ttc tth tti tto ttr tts ttt