-ic a-a a-b a-c a-i a-t aaa aab aac aaf aai aan aao aar aat aau ab- aba abb abc abf abi abn abo abr abt abu ac- aca acb acc acf aci acn aco acr act acu af- afa afb afc aff afi afn afo afr aft afu ai- aia aib aic aif aii ain aio air ait aiu an- ana anb anc anf ani ann ano anr ant anu aoa aob aoc aof aoi aon aoo aor aot aou ar- ara arb arc arf ari arn aro arr art aru at- ata atb atc atf ati atn ato atr att atu au- aua aub auc auf aui aun auo aur aut b-u baa bab bac baf bai ban bao bar bat bau bba bbb bbc bbf bbi bbn bbo bbr bbt bbu bca bcb bcc bcf bci bcn bco bcr bct bcu bfa bfb bfc bff bfi bfn bfo bfr bft bfu bi- bia bib bic bif bii bin bio bir bit biu bna bnb bnc bnf bni bnn bno bnr bnt bnu boa bob boc bof boi bon boo bor bot bou bra brb brf bri brn bro brr brt bru bta btb btc btf bti btn bto btr btt btu bua bub buc buf bui bun buo bur but buu c-- caa cab cac caf cai can cao car cat cau cba cbb cbc cbf cbi cbn cbo cbr cbt cbu cca ccb ccc ccf cci ccn cco ccr cct ccu cfa cfb cfc cff cfi cfn cfo cfr cft cfu ci- cia cib cic cif cii cin cio cir cit ciu cn- cna cnb cnc cnf cni cnn cno cnr cnt cnu co- coa cob coc cof coi con coo cor cot cou cra crb crc crf cri crn cro crr crt cru cta ctb ctc ctf cti ctn cto ctr ctt ctu cua cub cuc cuf cui cun cuo cur cut cuu faa fab fac faf fai fan fao far fat fau fba fbb fbc fbf fbi fbn fbo fbr fbt fbu fca fcb fcc fcf fci fcn fco fcr fct fcu ffa ffc fff ffi ffn ffo ffr fft ffu fia fib fic fif fii fin fir fit fiu fna fnb fnc fnf fni fnn fnr fnt fnu foa fob foc fof foi fon foo for fot fou fra frb frc frf fri frn fro frr frt fru fta ftb ftc ftf fti ftn fto ftr ftt ftu fua fub fuf fui fun fuo fur fut fuu i-f ia- iaa iab iac iaf iai ian iao iar iat iau iba ibb ibc ibf ibi ibn ibo ibr ibt ibu ica icb icc icf ici icn ico icr ict icu ifa ifb ifc iff ifi ifn ifo ifr ift ifu iia iib iic iif iii iin iio iir iit iiu in- ina inb inc inf ini inn ino inr int inu io- ioa iob ioc iof ioi ion ioo ior iot iou ir- ira irb irc irf iri irn iro irr irt iru ita itb itc itf iti itn ito itt itu iu- iua iub iuc iui iur iut n-i naa nab nac naf nai nan nao nar nat nau nba nbb nbc nbf nbi nbn nbo nbr nbt nbu nca ncb ncc ncf nci ncn nco ncr nct ncu nfa nfb nfc nff nfi nfn nfo nfr nft nfu nia nib nic nif nii nin nio nir nit niu nna nnb nnc nnf nni nnn nno nnt nnu no- noa nob noc nof noi non noo nor not nou nra nrb nrc nrf nri nrn nro nrr nrt nru nta ntb ntc ntf nti ntn nto ntr ntt ntu nua nub nuc nui nun nuo nur nut nuu o-i oaa oab oac oaf oai oan oao oar oat oau ob- oba obb obc obf obi obn obo obr obt obu oc- oca ocb occ ocf oci ocn oco ocr oct ocu of- ofa ofb ofc off ofi ofn ofo ofr oft ofu oia oib oic oif oii oin oio oir oit oiu on- ona onb onc onf oni onn ono onr ont onu oo- ooa oob ooc oof ooi oon ooo oor oot or- ora orb orc orf ori orn oro orr ort oru ot- ota otb otc otf oti otn oto otr ott otu ou- oua ouc ouf oui oun ouo our out ra- raa rab rac raf rai ran rao rar rat rau rba rbb rbc rbf rbi rbn rbo rbr rbt rbu rca rcb rcc rcf rci rcn rco rcr rct rcu rfa rfb rfc rff rfi rfn rfo rfr rft rfu ria rib ric rif rii rin rio rir rit rna rnb rnc rni rnn rno rnr rnt rnu roa rob roc rof roi ron roo ror rot rou rra rrb rrc rrf rri rrn rrr rrt rru rta rtb rtc rtf rti rtn rto rtr rtt rtu rua rub ruc ruf rui run ruo rur rut ruu taa tab tac taf tai tan tao tar tat tau tba tbb tbc tbf tbi tbn tbo tbr tbt tbu tca tcb tcc tcf tci tcn tco tcr tct tcu tfa tfb tfc tff tfi tfn tfo tfr tft tfu tia tib tic tif tii tin tio tir tit tiu tna tnb tnc tnf tni tnn tno tnr tnt to- toa tob toc tof toi ton too tor tot tou tra trb trc trf tri trn tro trr trt tru tta ttb ttc ttf tti ttn tto ttr ttt ttu tua tub tuc tuf tui tun tuo tur tut tuu ua- uaa uab uac uaf uai uan uao uar uat uau uba ubb ubc ubf ubi ubn ubo ubr ubt ubu uca ucb ucc ucf uci ucn uco ucr uct ucu ufa ufc uff ufi ufn ufo ufr uft ufu uia uib uic uif uii uin uio uir uit uiu un- una unb unc unf uni unn uno unr unt unu uoa uob uoc uon uoo uor uot ur- ura urb urc urf uri urn uro urr urt uru uta utb