-ic a-a a-b a-c a-i a-t aaa aab aac aai aak aan aar aat aau ab- aba abb abc abi abk abn abr abt abu ac- aca acb acc aci ack acn acr act acu ai- aia aib aic aii aik ain air ait aiu aka akb akc aki akk akn akr aku an- ana anb anc ani ank ann anr ant anu ar- ara arb arc ari ark arn arr art aru at- ata atb atc ati atn atr att atu au- aua aub auc aui auk aun aur aut b-u baa bab bac bai bak ban bar bat bau bba bbb bbc bbi bbk bbn bbr bbt bbu bca bcb bcc bci bck bcn bcr bct bcu bi- bia bib bic bii bik bin bir bit biu bka bkb bkc bkk bkn bkr bkt bna bnb bnc bni bnk bnn bnr bnt bnu bra brb bri brk brn brr brt bru bta btb btc bti btk btn btr btt btu bua bub buc bui buk bun bur but buu c-- caa cab cac cai cak can car cat cau cba cbb cbc cbi cbk cbn cbr cbt cbu cca ccb ccc cci cck ccn ccr cct ccu ci- cia cib cic cii cik cin cir cit ciu cka ckb ckc cki ckt cn- cna cnb cnc cni cnn cnr cnt cnu cra crb crc cri crk crn crr crt cru cta ctb ctc cti ctk ctn ctr ctt ctu cua cub cuc cui cuk cun cur cut cuu ia- iaa iab iac iai ian iar iat iau iba ibb ibc ibi ibk ibn ibr ibt ibu ica icb icc ici ick icn icr ict icu iia iib iic iii iin iir iit iiu ika ikb ikc iki ikk ikr ikt iku in- ina inb inc ini ink inn inr int inu ir- ira irb irc iri irk irn irr irt iru ita itb itc iti itk itn itt itu iu- iua iub iuc iui iur iut k-t ka- kaa kab kac kai kak kan kar kat kau kba kbb kbc kbi kbk kbn kbr kbu kca kcb kcc kci kck kcn kcr kct kcu kia kib kic kii kik kin kir kit kiu kkb kkc kki kkk kkn kkr kkt kku kn- kna knc kni knk knn knr knt knu kra krc kri krk krn krr krt kru kta ktb ktc ktk ktn ktr ktt ktu kub kuc kui kuk kun kur kut kuu n-i naa nab nac nai nak nan nar nat nau nba nbb nbc nbi nbk nbn nbr nbt nbu nca ncb ncc nci nck ncn ncr nct ncu nia nib nic nii nik nin nir nit niu nka nkc nki nkk nkn nkr nkt nku nna nnb nnc nni nnk nnn nnt nnu nra nrb nrc nri nrk nrn nrr nrt nru nta ntb ntc nti ntk ntn ntr ntt ntu nua nub nuc nui nuk nun nur nut nuu ra- raa rab rac rai rak ran rar rat rau rba rbb rbc rbi rbk rbn rbr rbt rbu rca rcb rcc rci rcn rcr rct rcu ria rib ric rii rik rin rir rit rkb rkc rkk rkt rku rna rnb rnc rni rnn rnr rnt rnu rra rrb rrc rri rrk rrn rrr rrt rru rta rtb rtc rti rtk rtn rtr rtt rtu rua rub ruc rui ruk run rur rut ruu taa tab tac tai tak tan tar tat tau tba tbb tbc tbi tbk tbn tbr tbt tbu tca tcb tcc tci tck tcn tcr tct tcu tia tib tic tii tik tin tir tit tiu tka tkb tkc tkk tkr tkt tna tnb tnc tni tnk tnn tnr tnt tra trb trc tri trk trn trr trt tru tta ttb ttc tti ttk ttn ttr ttt ttu tua tub tuc tui tuk tun tur tut tuu ua- uaa uab uac uai uak uan uar uat uau uba ubb ubc ubi ubk ubn ubr ubt ubu uca ucb ucc uci uck ucn ucr uct ucu uia uib uic uii uin uir uit uiu uka ukb ukc uki ukk ukn ukr uku un- una unb unc uni unk unn unr unt unu ur- ura urb urc uri urk urn urr urt uru uta utb utc uti utk utn utr utt utu uua uuc uun uur uut uuu