-er -ic a-a a-b a-c a-i aaa aab aac aad aae aaf aai aak aan aar aau ab- aba abb abc abd abe abf abi abk abn abr abu ac- aca acb acc acd ace acf aci ack acn acr acu ad- ada adb adc add ade adf adi adk adn adr adu aea aeb aec aed aee aef aei aek aen aer aeu af- afa afb afc afd afe aff afi afk afn afr afu ai- aia aib aic aid aie aif aii aik ain air aiu aka akb akc akd ake aki akk akn akr aku an- ana anb anc and ane anf ani ank ann anr anu ar- ara arb arc ard are arf ari ark arn arr aru au- aua aub auc aud aue auf aui auk aun aur b-u baa bab bac bad bae baf bai bak ban bar bau bba bbb bbc bbd bbe bbf bbi bbk bbn bbr bbu bca bcb bcc bcd bce bcf bci bck bcn bcr bcu bda bdb bdc bdd bde bdf bdi bdk bdr bdu be- bea beb bec bed bee bef bei bek ben ber beu bfa bfb bfc bfd bfe bff bfi bfn bfr bfu bi- bia bib bic bid bie bif bii bik bin bir biu bka bkb bkc bke bkf bkk bkn bkr bna bnb bnc bnd bne bnf bni bnk bnn bnr bnu bra brb brd bre brf bri brk brn brr bru bua bub buc bud bue buf bui buk bun bur buu c-- caa cab cac cad cae caf cai cak can car cau cba cbb cbc cbd cbe cbf cbi cbk cbn cbr cbu cca ccb ccc ccd cce ccf cci cck ccn ccr ccu cda cdb cdc cdd cde cdf cdi cdk cdn cdr cdu ce- cea ceb cec ced cee cef cei cek cen cer ceu cfa cfb cfc cfd cfe cff cfi cfk cfn cfr cfu ci- cia cib cic cid cie cif cii cik cin cir ciu cka ckb ckc ckd cki cn- cna cnb cnc cnd cne cnf cni cnn cnr cnu cra crb crc crd cre crf cri crk crn crr cru cua cub cuc cud cue cuf cui cuk cun cur cuu daa dab dac dad dae daf dai dak dan dar dau dba dbb dbc dbd dbe dbf dbi dbk dbn dbr dbu dca dcb dcc dcd dce dcf dci dck dcn dcr dcu dda ddb ddc ddd dde ddf ddi ddk ddn ddr ddu de- dea deb dec ded dee def dei dek den der deu dfa dfb dfc dfd dfe dff dfi dfk dfn dfr dfu di- dia dib dic did die dif dii dik din dir diu dka dkb dkc dke dki dkk dkr dku dna dnb dnc dnd dne dnf dni dnk dnn dnr dra drb drc drd dre dri drk drn drr dru dua dub duc dud due duf dui duk dun dur eaa eab eac ead eae eaf eai eak ean ear eau eba ebb ebc ebd ebe ebf ebi ebk ebn ebr ebu ec- eca ecb ecc ecd ece ecf eci eck ecn ecr ecu ed- eda edb edc edd ede edf edi edk edn edr edu eea eeb eec eed eee eef eek een eer ef- efa efb efc efd efe eff efi efr eia eib eic eid eie eif eii eik ein eir eiu eka ekb ekc ekd eke ekf eki ekr eku en- ena enb enc end ene enf eni enk enn enr enu era erb erc erd ere erf eri erk ern err eru eu- eua eub euc eud eue euf eui eun eur faa fab fac fad fae faf fai fak fan far fau fba fbb fbc fbd fbe fbf fbi fbk fbn fbr fbu fca fcb fcc fcd fce fcf fci fck fcn fcr fcu fda fdb fdc fdd fde fdf fdi fdk fdn fdr fdu fea feb fec fed fee fef fei fek fen fer feu ffa ffc ffd ffe fff ffi ffk ffn ffr ffu fia fib fic fid fie fif fii fik fin fir fiu fka fkb fkc fkf fki fkk fna fnb fnc fnd fne fnf fni fnk fnn fnr fnu fra frb frc frd fre frf fri frk frn frr fru fua fub fud fue fuf fui fuk fun fur fuu i-d i-f ia- iaa iab iac iad iae iaf iai ian iar iau iba ibb ibc ibd ibe ibf ibi ibk ibn ibr ibu ica icb icc icd ice icf ici ick icn icr icu ida idb idc idd ide idf idi idk idn idr idu ie- iea iec ied iee ief iei iek ien ier ifa ifb ifc ifd ife iff ifi ifn ifr ifu iia iib iic iid iie iif iii iin iir iiu ika ikb ikc ike ikf iki ikk ikr iku in- ina inb inc ind ine inf ini ink inn inr inu ir- ira irb irc ird ire irf iri irk irn irr iru iu- iua iub iuc iud iue iui iur ka- kaa kab kac kad kae kaf kai kak kan kar kau kba kbb kbc kbd kbe kbf kbi kbk kbn kbr kbu kca kcb kcc kcd kce kci kck kcn kcr kcu kda kdb kdc kde kdf kdk kdr kdu ke- kea keb kec ked kee kef kei kek ken ker kfa kfc kfd kff kfi kfu kia kib kic kid kie kif kii kik kin kir kiu kkb kkc kke kki kkk kkn kkr kku kn- kna knc knd kne knf kni knk knn knr knu kra krc krd krf kri krk krn krr kru kub kuc kud kue kui kuk kun kur kuu n-i naa nab nac nad nae naf nai nak nan nar nau nba nbb nbc nbd nbe nbf nbi nbk nbn nbr nbu nca ncb ncc ncd nce ncf nci nck ncn ncr ncu nda ndb ndc ndd nde ndf ndi ndk ndn ndr ndu ne- nea neb nec ned nee nef nei nek nen ner neu nfa nfb nfc