-ic -th a-a a-b a-c a-i a-t aaa aab aac aah aai aao aas aat ab- aba abb abc abh abi abo abs abt ac- aca acb acc ach aci aco acs act aha ahb ahc ahh ahi aho ahs aht ai- aia aib aic aih aii aio ais ait aoa aob aoc aoh aoi aoo aos aot as- asa asb asc ash asi aso ass ast at- ata atb atc ath ati ato ats att baa bab bac bah bai bao bas bat bba bbb bbc bbh bbi bbo bbs bbt bca bcb bcc bch bci bco bcs bct bha bhb bhc bhh bhi bho bhs bht bi- bia bib bic bih bii bio bis bit boa bob boc boh boi boo bos bot bsa bsb bsc bsh bsi bso bss bst bta btb btc bth bti bto bts btt c-- caa cab cac cah cai cao cas cat cba cbb cbc cbh cbi cbo cbs cbt cca ccb ccc cch cci cco ccs cct ch- cha chb chc chh chi cho chs cht ci- cia cib cic cih cii cio cis cit co- coa cob coc coh coi coo cos cot csa csb csc csh csi cso css cst cta ctb ctc cth cti cto cts ctt h-i haa hab hac hah hai hao has hat hba hbb hbc hbh hbi hbo hbs hbt hca hcb hcc hch hci hco hcs hct hha hhb hhc hhh hhi hho hhs hht hia hib hic hih hii hio his hit hoa hob hoc hoh hoi hoo hos hot hsa hsb hsc hsh hsi hss hst hta htb htc hth hti hto hts htt ia- iaa iab iac iah iai iao ias iat iba ibb ibc ibh ibi ibo ibs ibt ica icb icc ich ici ico ics ict iha ihb ihc ihh ihi iho ihs iht iia iib iic iih iii iio iis iit io- ioa iob ioc ioh ioi ioo ios iot is- isa isb isc ish isi iso iss ist ita itb itc ith iti ito its itt o-i oaa oab oac oah oai oao oas oat ob- oba obb obc obh obi obo obs obt oc- oca ocb occ och oci oco ocs oct oha ohc ohh ohi oho ohs oht oia oib oic oii oio ois oit oo- ooa oob ooc ooh ooi ooo oos oot os- osa osb osc osh osi oso oss ost ot- ota otb otc oth oti oto ots ott saa sab sac sah sai sao sas sat sba sbb sbc sbh sbi sbo sbs sbt sca scb scc sch sci sco scs sct sh- sha shb shc shh shi sho shs sht sia sib sic sih sii sio sis sit soa sob soc soh soi soo sos sot ss- ssa ssb ssc ssh ssi sso sss sst sta stb stc sth sti sto sts stt taa tab tac tah tai tao tas tat tba tbb tbc tbh tbi tbo tbs tbt tca tcb tcc tch tci tco tcs tct th- tha thb thc thh thi tho ths tht tia tib tic tih tii tio tis tit to- toa tob toc toh toi too tos tot tsa tsb tsc tsh tsi tso tss tst tta ttb ttc tth tti tto tts ttt