-ic a-a a-b a-c a-i a-t aaa aab aac aai aan aao aar aat aay ab- aba abb abc abi abn abo abr abt aby ac- aca acb acc aci acn aco acr act acy ai- aia aib aic aii ain aio air ait aiy an- ana anb anc ani ann ano anr ant any aoa aob aoc aoi aon aoo aor aot ar- ara arb arc ari arn aro arr art ary at- ata atb atc ati atn ato atr att ay- aya ayc ayi ayn ayo ayr ayt baa bab bac bai ban bao bar bat bay bba bbb bbc bbi bbn bbo bbr bbt bby bca bcb bcc bci bcn bco bcr bct bcy bi- bia bib bic bii bin bio bir bit biy bna bnb bnc bni bnn bno bnr bnt boa bob boc boi bon boo bor bot boy bra brb bri brn bro brr brt bry bta btb btc bti btn bto btr btt bty by- bya byc byi byn byo byr byt c-- caa cab cac cai can cao car cat cay cba cbb cbc cbi cbn cbo cbr cbt cby cca ccb ccc cci ccn cco ccr cct ci- cia cib cic cii cin cio cir cit cn- cna cnb cnc cni cnn cno cnr cnt cny co- coa cob coc coi con coo cor cot coy cra crb crc cri crn cro crr crt cry cta ctb ctc cti ctn cto ctr ctt cty cya cyb cyc cyn cyo cyr cyt ia- iaa iab iac iai ian iao iar iat iba ibb ibc ibi ibn ibo ibr ibt iby ica icb icc ici icn ico icr ict icy iia iib iic iii iin iio iir iit in- ina inb inc ini inn ino inr int iny io- ioa iob ioc ioi ion ioo ior iot ir- ira irb irc iri irn iro irr irt iry ita itb itc iti itn ito itt ity iya iyc iyo iyr iyt iyy n-i naa nab nac nai nan nao nar nat nay nba nbb nbc nbi nbn nbo nbr nbt nca ncb ncc nci ncn nco ncr nct nia nib nic nii nin nio nir nit nna nnb nnc nni nnn nno nnt no- noa nob noc noi non noo nor not noy nra nrb nrc nri nrn nro nrr nrt nry nta ntb ntc nti ntn nto ntr ntt nya nyc nyn nyo nyt nyy o-i oaa oab oac oai oan oao oar oat ob- oba obb obc obi obn obo obr obt oby oc- oca ocb occ oci ocn oco ocr oct oia oib oic oii oin oio oir oit on- ona onb onc oni onn ono onr ont ony oo- ooa oob ooc ooi oon ooo oor oot or- ora orb orc ori orn oro orr ort ory ot- ota otb otc oti otn oto otr ott oya oyi oyo ra- raa rab rac rai ran rao rar rat ray rba rbb rbc rbi rbn rbo rbr rbt rca rcb rcc rci rcn rco rcr rct ria rib ric rii rin rio rir rit riy rna rnb rnc rni rnn rno rnr rnt rny roa rob roc roi ron roo ror rot roy rra rrb rrc rri rrn rrr rrt rta rtb rtc rti rtn rto rtr rtt rty ry- rya ryc ryn ryo ryr ryy taa tab tac tai tan tao tar tat tay tba tbb tbc tbi tbn tbo tbr tbt tca tcb tcc tci tcn tco tcr tct tia tib tic tii tin tio tir tit tiy tna tnb tnc tni tnn tno tnr tnt to- toa tob toc toi ton too tor tot toy tra trb trc tri trn tro trr trt try tta ttb ttc tti ttn tto ttr ttt tty tya tyc tyn tyo tyr tyt yaa yab yac yai yan yao yar yat yay ybc ybi ybr yby yca ycc yci yco ycy yii yin yio yir yit yna ynn yny yob yoc yoi yon yoo yor yot yoy yra yrc yrn yro yrt yta ytc ytn yto ytr ytt yyb yyc yyt yyy