-ic -th a-a a-b a-c a-i a-t aaa aab aac aah aai aak aao aar aat ab- aba abb abc abh abi abk abo abr abt ac- aca acb acc ach aci ack aco acr act aha ahb ahc ahh ahi ahk aho ahr aht ai- aia aib aic aih aii aik aio air ait aka akb akc akh aki akk ako akr aoa aob aoc aoh aoi aok aoo aor aot ar- ara arb arc arh ari ark aro arr art at- ata atb atc ath ati ato atr att baa bab bac bah bai bak bao bar bat bba bbb bbc bbh bbi bbk bbo bbr bbt bca bcb bcc bch bci bck bco bcr bct bha bhb bhc bhh bhi bhk bho bhr bht bi- bia bib bic bih bii bik bio bir bit bka bkb bkc bkk bko bkr bkt boa bob boc boh boi bok boo bor bot bra brb brh bri brk bro brr brt bta btb btc bth bti btk bto btr btt c-- caa cab cac cah cai cak cao car cat cba cbb cbc cbh cbi cbk cbo cbr cbt cca ccb ccc cch cci cck cco ccr cct ch- cha chb chc chh chi chk cho chr cht ci- cia cib cic cih cii cik cio cir cit cka ckb ckc ckh cki cko ckt co- coa cob coc coh coi cok coo cor cot cra crb crc crh cri crk cro crr crt cta ctb ctc cth cti ctk cto ctr ctt h-i haa hab hac hah hai hak hao har hat hba hbb hbc hbh hbi hbk hbo hbr hbt hca hcb hcc hch hci hck hco hcr hct hha hhb hhc hhh hhi hhk hho hhr hht hia hib hic hih hii hik hio hir hit hka hkb hkh hki hkk hko hkr hkt hoa hob hoc hoh hoi hok hoo hor hot hr- hra hrb hrc hrh hri hrk hro hrr hrt hta htb htc hth hti htk hto htr htt ia- iaa iab iac iah iai iao iar iat iba ibb ibc ibh ibi ibk ibo ibr ibt ica icb icc ich ici ick ico icr ict iha ihb ihc ihh ihi ihk iho ihr iht iia iib iic iih iii iio iir iit ika ikb ikc iki ikk iko ikr ikt io- ioa iob ioc ioh ioi ioo ior iot ir- ira irb irc iri irk iro irr irt ita itb itc ith iti itk ito itt k-t ka- kaa kab kac kah kai kak kao kar kat kba kbb kbc kbh kbi kbk kbo kbr kca kcb kcc kch kci kck kcr kct kha khh khi khk kho khr kia kib kic kih kii kik kio kir kit kkb kkc kkh kki kkk kkr kkt koa kob koc koh koi kok koo kor kot kra krc kri krk kro krr krt kta ktb ktc kth ktk kto ktr ktt o-i oaa oab oac oah oai oak oao oar oat ob- oba obb obc obh obi obk obo obr obt oc- oca ocb occ och oci ock oco ocr oct oha ohc ohh ohi oho ohr oht oia oib oic oii oik oio oir oit oka okb okc oki okk oko okr oo- ooa oob ooc ooh ooi ook ooo oor oot or- ora orb orc orh ori ork oro orr ort ot- ota otb otc oth oti otk oto otr ott ra- raa rab rac rah rai rak rao rar rat rba rbb rbc rbh rbi rbk rbo rbr rbt rca rcb rcc rch rci rco rcr rct rh- rha rhb rhc rhh rhi rho rhr rht ria rib ric rih rii rik rio rir rit rkb rkc rkk rko rkt roa rob roc roh roi rok roo ror rot rra rrb rrc rrh rri rrk rrr rrt rta rtb rtc rti rtk rto rtr rtt taa tab tac tah tai tak tao tar tat tba tbb tbc tbh tbi tbk tbo tbr tbt tca tcb tcc tch tci tck tco tcr tct th- tha thb thc thh thi thk tho thr tht tia tib tic tih tii tik tio tir tit tka tkb tkc tkk tko tkr tkt to- toa tob toc toh toi tok too tor tot tra trb trc trh tri trk tro trr trt tta ttb ttc tth tti ttk tto ttr ttt