-ic -th a-a a-b a-c a-i a-t aaa aab aac aah aai aar aat aax aay ab- aba abb abc abh abi abr abt abx aby ac- aca acb acc ach aci acr act acx acy aha ahb ahc ahh ahi ahr aht ahx ahy ai- aia aib aic aih aii air ait aix aiy ar- ara arb arc arh ari arr art arx ary at- ata atb atc ath ati atr att atx ax- axa axh axi axr axt axx ay- aya ayc ayh ayi ayr ayt ayx baa bab bac bah bai bar bat bax bay bba bbb bbc bbh bbi bbr bbt bbx bby bca bcb bcc bch bci bcr bct bcx bcy bha bhb bhc bhh bhi bhr bht bhx bi- bia bib bic bih bii bir bit bix biy bra brb brh bri brr brt brx bry bta btb btc bth bti btr btt btx bty bxb bxi bxx by- bya byc byh byi byr byt c-- caa cab cac cah cai car cat cax cay cba cbb cbc cbh cbi cbr cbt cbx cby cca ccb ccc cch cci ccr cct ccx ch- cha chb chc chh chi chr cht chx chy ci- cia cib cic cih cii cir cit cix cra crb crc crh cri crr crt crx cry cta ctb ctc cth cti ctr ctt ctx cty cxc cxh cxi cxr cxt cxx cya cyb cyc cyr cyt h-i haa hab hac hah hai har hat hax hay hba hbb hbc hbh hbi hbr hbt hbx hby hca hcb hcc hch hci hcr hct hcy hha hhb hhc hhh hhi hhr hht hhy hia hib hic hih hii hir hit hix hr- hra hrb hrc hrh hri hrr hrt hta htb htc hth hti htr htt htx hty hxc hy- hya hyb hyc hyh hyi hyr hyt hyy ia- iaa iab iac iah iai iar iat iba ibb ibc ibh ibi ibr ibt ibx iby ica icb icc ich ici icr ict icy iha ihb ihc ihh ihi ihr iht ihy iia iib iic iih iii iir iit iix ir- ira irb irc iri irr irt irx iry ita itb itc ith iti itt itx ity ixc ixi ixy iya iyc iyr iyt iyy ra- raa rab rac rah rai rar rat rax ray rba rbb rbc rbh rbi rbr rbt rbx rca rcb rcc rch rci rcr rct rcx rh- rha rhb rhc rhh rhi rhr rht ria rib ric rih rii rir rit rix riy rra rrb rrc rrh rri rrr rrt rta rtb rtc rti rtr rtt rtx rty rxr ry- rya ryc ryr ryy t-x taa tab tac tah tai tar tat tax tay tba tbb tbc tbh tbi tbr tbt tca tcb tcc tch tci tcr tct tcx th- tha thb thc thh thi thr tht thx thy tia tib tic tih tii tir tit tix tiy tra trb trc trh tri trr trt trx try tta ttb ttc tth tti ttr ttt ttx tty txi txt tya tyc tyr tyt xaa xac xar xat xbc xbr xbx xcb xch xci xcr xcx xht xia xic xii xit xix xrc xrt xrx xry xtc xti xtr xtx xty xxi xxx xxy xyr xyy yaa yab yac yah yai yar yat yax yay ybc ybi ybr yby yca ycc ych yci ycy yha yhc yhi yht yih yii yir yit yra yrc yrt yta ytc yth ytr ytt yxa yxy yyb yyc yyt yyy