-er -ic a-a a-b a-c a-i a-t aaa aab aac aae aaf aai aan aar aas aat aau ab- aba abb abc abe abf abi abn abr abs abt abu ac- aca acb acc ace acf aci acn acr acs act acu aea aeb aec aee aef aei aen aer aes aet aeu af- afa afb afc afe aff afi afn afr afs aft afu ai- aia aib aic aie aif aii ain air ais ait aiu an- ana anb anc ane anf ani ann anr ans ant anu ar- ara arb arc are arf ari arn arr ars art aru as- asa asb asc ase asf asi asn asr ass ast asu at- ata atb atc ate atf ati atn atr ats att atu au- aua aub auc aue auf aui aun aur aus aut b-u baa bab bac bae baf bai ban bar bas bat bau bba bbb bbc bbe bbf bbi bbn bbr bbs bbt bbu bca bcb bcc bce bcf bci bcn bcr bcs bct bcu be- bea beb bec bee bef bei ben ber bes bet beu bfa bfb bfc bfe bff bfi bfn bfr bfs bft bfu bi- bia bib bic bie bif bii bin bir bis bit biu bna bnb bnc bne bnf bni bnn bnr bns bnt bnu bra brb bre brf bri brn brr brs brt bru bsa bsb bsc bse bsf bsi bsn bsr bss bst bsu bta btb btc bte btf bti btn btr bts btt btu bua bub buc bue buf bui bun bur bus but buu c-- caa cab cac cae caf cai can car cas cat cau cba cbb cbc cbe cbf cbi cbn cbr cbs cbt cbu cca ccb ccc cce ccf cci ccn ccr ccs cct ccu ce- cea ceb cec cee cef cei cen cer ces cet ceu cfa cfb cfc cfe cff cfi cfn cfr cfs cft cfu ci- cia cib cic cie cif cii cin cir cis cit ciu cn- cna cnb cnc cne cnf cni cnn cnr cns cnt cnu cra crb crc cre crf cri crn crr crs crt cru csa csb csc cse csf csi csn csr css cst csu cta ctb ctc cte ctf cti ctn ctr cts ctt ctu cua cub cuc cue cuf cui cun cur cus cut cuu eaa eab eac eae eaf eai ean ear eas eat eau eba ebb ebc ebe ebf ebi ebn ebr ebs ebt ebu ec- eca ecb ecc ece ecf eci ecn ecr ecs ect ecu eea eeb eec eee eef een eer ees eet ef- efa efb efc efe eff efi efr efs eft eia eib eic eie eif eii ein eir eis eit eiu en- ena enb enc ene enf eni enn enr ens ent enu era erb erc ere erf eri ern err ers ert eru es- esa esb esc ese esf esi esn esr ess est esu eta etb etc ete etf eti etn etr ets ett etu eu- eua eub euc eue euf eui eun eur eus eut faa fab fac fae faf fai fan far fas fat fau fba fbb fbc fbe fbf fbi fbn fbr fbs fbt fbu fca fcb fcc fce fcf fci fcn fcr fcs fct fcu fea feb fec fee fef fei fen fer fes fet feu ffa ffc ffe fff ffi ffn ffr ffs fft ffu fia fib fic fie fif fii fin fir fis fit fiu fna fnb fnc fne fnf fni fnn fnr fns fnt fnu fra frb frc fre frf fri frn frr frs frt fru fsa fsb fsc fse fsf fsi fsn fsr fss fst fsu fta ftb ftc fte ftf fti ftn ftr fts ftt ftu fua fub fue fuf fui fun fur fus fut fuu i-f ia- iaa iab iac iae iaf iai ian iar ias iat iau iba ibb ibc ibe ibf ibi ibn ibr ibs ibt ibu ica icb icc ice icf ici icn icr ics ict icu ie- iea iec iee ief iei ien ier ies iet ifa ifb ifc ife iff ifi ifn ifr ifs ift ifu iia iib iic iie iif iii iin iir iis iit iiu in- ina inb inc ine inf ini inn inr ins int inu ir- ira irb irc ire irf iri irn irr irs irt iru is- isa isb isc ise isf isi isn isr iss ist isu ita itb itc ite itf iti itn its itt itu iu- iua iub iuc iue iui iur ius iut n-i naa nab nac nae naf nai nan nar nas nat nau nba nbb nbc nbe nbf nbi nbn nbr nbs nbt nbu nca ncb ncc nce ncf nci ncn ncr ncs nct ncu ne- nea neb nec nee nef nei nen ner nes net neu nfa nfb nfc nfe nff nfi nfn nfr nfs nft nfu nia nib nic nie nif nii nin nir nis nit niu nna nnb nnc nne nnf nni nnn nns nnt nnu nra nrb nrc nre nrf nri nrn nrr nrs nrt nru nsa nsb nsc nse nsf nsi nsn nsr nss nst nsu nta ntb ntc nte ntf nti ntn ntr nts ntt ntu nua nub nuc nue nui nun nur nus nut nuu ra- raa rab rac rae raf rai ran rar ras rat rau rba rbb rbc rbe rbf rbi rbn rbr rbs rbt rbu rca rcb rcc rce rcf rci rcn rcr rcs rct rcu re- rea reb rec ree ref rei ren rer res ret reu rfa rfb rfc rfe rff rfi rfn rfr rfs rft rfu ria rib ric rie rif rii rin rir ris rit rna rnb rnc rni rnn rnr rns rnt rnu rra rrb rrc rrf rri rrn rrr rrs rrt rru rsa rsb rsc rse rsf rsi rsn rsr rss rst rsu rta rtb rtc rte rtf rti rtn rtr rts rtt rtu rua rub ruc rue ruf rui run rur rus rut ruu saa sab sac sae saf sai san sar sas sat sau sba sbb sbc