-er -ic a-a a-b a-c a-i aaa aab aac aad aae aaf aai aan aar aas aau ab- aba abb abc abd abe abf abi abn abr abs abu ac- aca acb acc acd ace acf aci acn acr acs acu ad- ada adb adc add ade adf adi adn adr ads adu aea aeb aec aed aee aef aei aen aer aes aeu af- afa afb afc afd afe aff afi afn afr afs afu ai- aia aib aic aid aie aif aii ain air ais aiu an- ana anb anc and ane anf ani ann anr ans anu ar- ara arb arc ard are arf ari arn arr ars aru as- asa asb asc asd ase asf asi asn asr ass asu au- aua aub auc aud aue auf aui aun aur aus b-u baa bab bac bad bae baf bai ban bar bas bau bba bbb bbc bbd bbe bbf bbi bbn bbr bbs bbu bca bcb bcc bcd bce bcf bci bcn bcr bcs bcu bda bdb bdc bdd bde bdf bdi bdr bds bdu be- bea beb bec bed bee bef bei ben ber bes beu bfa bfb bfc bfd bfe bff bfi bfn bfr bfs bfu bi- bia bib bic bid bie bif bii bin bir bis biu bna bnb bnc bnd bne bnf bni bnn bnr bns bnu bra brb brd bre brf bri brn brr brs bru bsa bsb bsc bsd bse bsf bsi bsn bsr bss bsu bua bub buc bud bue buf bui bun bur bus buu c-- caa cab cac cad cae caf cai can car cas cau cba cbb cbc cbd cbe cbf cbi cbn cbr cbs cbu cca ccb ccc ccd cce ccf cci ccn ccr ccs ccu cda cdb cdc cdd cde cdf cdi cdn cdr cds cdu ce- cea ceb cec ced cee cef cei cen cer ces ceu cfa cfb cfc cfd cfe cff cfi cfn cfr cfs cfu ci- cia cib cic cid cie cif cii cin cir cis ciu cn- cna cnb cnc cnd cne cnf cni cnn cnr cns cnu cra crb crc crd cre crf cri crn crr crs cru csa csb csc csd cse csf csi csn csr css csu cua cub cuc cud cue cuf cui cun cur cus cuu daa dab dac dad dae daf dai dan dar das dau dba dbb dbc dbd dbe dbf dbi dbn dbr dbs dbu dca dcb dcc dcd dce dcf dci dcn dcr dcs dcu dda ddb ddc ddd dde ddf ddi ddn ddr dds ddu de- dea deb dec ded dee def dei den der des deu dfa dfb dfc dfd dfe dff dfi dfn dfr dfs dfu di- dia dib dic did die dif dii din dir dis diu dna dnb dnc dnd dne dnf dni dnn dnr dns dra drb drc drd dre dri drn drr drs dru dsa dsb dsc dsd dse dsf dsi dsn dsr dss dsu dua dub duc dud due duf dui dun dur dus eaa eab eac ead eae eaf eai ean ear eas eau eba ebb ebc ebd ebe ebf ebi ebn ebr ebs ebu ec- eca ecb ecc ecd ece ecf eci ecn ecr ecs ecu ed- eda edb edc edd ede edf edi edn edr eds edu eea eeb eec eed eee eef een eer ees ef- efa efb efc efd efe eff efi efr efs eia eib eic eid eie eif eii ein eir eis eiu en- ena enb enc end ene enf eni enn enr ens enu era erb erc erd ere erf eri ern err ers eru es- esa esb esc esd ese esf esi esn esr ess esu eu- eua eub euc eud eue euf eui eun eur eus faa fab fac fad fae faf fai fan far fas fau fba fbb fbc fbd fbe fbf fbi fbn fbr fbs fbu fca fcb fcc fcd fce fcf fci fcn fcr fcs fcu fda fdb fdc fdd fde fdf fdi fdn fdr fds fdu fea feb fec fed fee fef fei fen fer fes feu ffa ffc ffd ffe fff ffi ffn ffr ffs ffu fia fib fic fid fie fif fii fin fir fis fiu fna fnb fnc fnd fne fnf fni fnn fnr fns fnu fra frb frc frd fre frf fri frn frr frs fru fsa fsb fsc fsd fse fsf fsi fsn fsr fss fsu fua fub fud fue fuf fui fun fur fus fuu i-d i-f ia- iaa iab iac iad iae iaf iai ian iar ias iau iba ibb ibc ibd ibe ibf ibi ibn ibr ibs ibu ica icb icc icd ice icf ici icn icr ics icu ida idb idc idd ide idf idi idn idr ids idu ie- iea iec ied iee ief iei ien ier ies ifa ifb ifc ifd ife iff ifi ifn ifr ifs ifu iia iib iic iid iie iif iii iin iir iis iiu in- ina inb inc ind ine inf ini inn inr ins inu ir- ira irb irc ird ire irf iri irn irr irs iru is- isa isb isc isd ise isf isi isn isr iss isu iu- iua iub iuc iud iue iui iur ius n-i naa nab nac nad nae naf nai nan nar nas nau nba nbb nbc nbd nbe nbf nbi nbn nbr nbs nbu nca ncb ncc ncd nce ncf nci ncn ncr ncs ncu nda ndb ndc ndd nde ndf ndi ndn ndr nds ndu ne- nea neb nec ned nee nef nei nen ner nes neu nfa nfb nfc nfd nfe nff nfi nfn nfr nfs nfu nia nib nic nid nie nif nii nin nir nis niu nna nnb nnc nne nnf nni nnn nns nnu nra nrb nrc nrd nre nrf nri nrn nrr nrs nru nsa nsb nsc nsd nse nsf nsi nsn nsr nss nsu nua nub nuc nud nue nui nun nur nus nuu ra- raa rab rac rad rae raf rai ran rar ras rau rba