-ic -th a-a a-b a-c a-i a-t aaa aab aac aah aai aan aao aar aat ab- aba abb abc abh abi abn abo abr abt ac- aca acb acc ach aci acn aco acr act aha ahb ahc ahh ahi ahn aho ahr aht ai- aia aib aic aih aii ain aio air ait an- ana anb anc anh ani ann ano anr ant aoa aob aoc aoh aoi aon aoo aor aot ar- ara arb arc arh ari arn aro arr art at- ata atb atc ath ati atn ato atr att baa bab bac bah bai ban bao bar bat bba bbb bbc bbh bbi bbn bbo bbr bbt bca bcb bcc bch bci bcn bco bcr bct bha bhb bhc bhh bhi bho bhr bht bi- bia bib bic bih bii bin bio bir bit bna bnb bnc bni bnn bno bnr bnt boa bob boc boh boi bon boo bor bot bra brb brh bri brn bro brr brt bta btb btc bth bti btn bto btr btt c-- caa cab cac cah cai can cao car cat cba cbb cbc cbh cbi cbn cbo cbr cbt cca ccb ccc cch cci ccn cco ccr cct ch- cha chb chc chh chi chn cho chr cht ci- cia cib cic cih cii cin cio cir cit cn- cna cnb cnc cnh cni cnn cno cnr cnt co- coa cob coc coh coi con coo cor cot cra crb crc crh cri crn cro crr crt cta ctb ctc cth cti ctn cto ctr ctt h-i haa hab hac hah hai han hao har hat hba hbb hbc hbh hbi hbn hbo hbr hbt hca hcb hcc hch hci hcn hco hcr hct hha hhb hhc hhh hhi hhn hho hhr hht hia hib hic hih hii hin hio hir hit hna hnb hnc hnh hnn hno hnt hoa hob hoc hoh hoi hon hoo hor hot hr- hra hrb hrc hrh hri hrn hro hrr hrt hta htb htc hth hti htn hto htr htt ia- iaa iab iac iah iai ian iao iar iat iba ibb ibc ibh ibi ibn ibo ibr ibt ica icb icc ich ici icn ico icr ict iha ihb ihc ihh ihi ihn iho ihr iht iia iib iic iih iii iin iio iir iit in- ina inb inc inh ini inn ino inr int io- ioa iob ioc ioh ioi ion ioo ior iot ir- ira irb irc iri irn iro irr irt ita itb itc ith iti itn ito itt n-i naa nab nac nah nai nan nao nar nat nba nbb nbc nbi nbn nbo nbr nbt nca ncb ncc nch nci ncn nco ncr nct nha nhb nhc nhh nhi nhn nhr nht nia nib nic nih nii nin nio nir nit nna nnb nnc nnh nni nnn nno nnt no- noa nob noc noh noi non noo nor not nra nrb nrc nri nrn nro nrr nrt nta ntb ntc nth nti ntn nto ntr ntt o-i oaa oab oac oah oai oan oao oar oat ob- oba obb obc obh obi obn obo obr obt oc- oca ocb occ och oci ocn oco ocr oct oha ohc ohh ohi ohn oho ohr oht oia oib oic oii oin oio oir oit on- ona onb onc onh oni onn ono onr ont oo- ooa oob ooc ooh ooi oon ooo oor oot or- ora orb orc orh ori orn oro orr ort ot- ota otb otc oth oti otn oto otr ott ra- raa rab rac rah rai ran rao rar rat rba rbb rbc rbh rbi rbn rbo rbr rbt rca rcb rcc rch rci rcn rco rcr rct rh- rha rhb rhc rhh rhi rhn rho rhr rht ria rib ric rih rii rin rio rir rit rna rnb rnc rnh rni rnn rno rnr rnt roa rob roc roh roi ron roo ror rot rra rrb rrc rrh rri rrn rrr rrt rta rtb rtc rti rtn rto rtr rtt taa tab tac tah tai tan tao tar tat tba tbb tbc tbh tbi tbn tbo tbr tbt tca tcb tcc tch tci tcn tco tcr tct th- tha thb thc thh thi thn tho thr tht tia tib tic tih tii tin tio tir tit tna tnb tnc tnh tni tnn tno tnr tnt to- toa tob toc toh toi ton too tor tot tra trb trc trh tri trn tro trr trt tta ttb ttc tth tti ttn tto ttr ttt