-er a-a a-b a-i a-t aaa aab aad aae aaf aai aan aar aas aat aau ab- aba abb abd abe abf abi abn abr abs abt abu ad- ada adb add ade adf adi adn adr ads adt adu aea aeb aed aee aef aei aen aer aes aet aeu af- afa afb afd afe aff afi afn afr afs aft afu ai- aia aib aid aie aif aii ain air ais ait aiu an- ana anb and ane anf ani ann anr ans ant anu ar- ara arb ard are arf ari arn arr ars art aru as- asa asb asd ase asf asi asn asr ass ast asu at- ata atb atd ate atf ati atn atr ats att atu au- aua aub aud aue auf aui aun aur aus aut b-u baa bab bad bae baf bai ban bar bas bat bau bba bbb bbd bbe bbf bbi bbn bbr bbs bbt bbu bda bdb bdd bde bdf bdi bdr bds bdt bdu be- bea beb bed bee bef bei ben ber bes bet beu bfa bfb bfd bfe bff bfi bfn bfr bfs bft bfu bi- bia bib bid bie bif bii bin bir bis bit biu bna bnb bnd bne bnf bni bnn bnr bns bnt bnu bra brb brd bre brf bri brn brr brs brt bru bsa bsb bsd bse bsf bsi bsn bsr bss bst bsu bta btb btd bte btf bti btn btr bts btt btu bua bub bud bue buf bui bun bur bus but buu daa dab dad dae daf dai dan dar das dat dau dba dbb dbd dbe dbf dbi dbn dbr dbs dbt dbu dda ddb ddd dde ddf ddi ddn ddr dds ddt ddu de- dea deb ded dee def dei den der des det deu dfa dfb dfd dfe dff dfi dfn dfr dfs dft dfu di- dia dib did die dif dii din dir dis dit diu dna dnb dnd dne dnf dni dnn dnr dns dnt dra drb drd dre dri drn drr drs drt dru dsa dsb dsd dse dsf dsi dsn dsr dss dst dsu dta dtb dtd dte dtf dti dtn dtr dts dtt dtu dua dub dud due duf dui dun dur dus dut eaa eab ead eae eaf eai ean ear eas eat eau eba ebb ebd ebe ebf ebi ebn ebr ebs ebt ebu ed- eda edb edd ede edf edi edn edr eds edt edu eea eeb eed eee eef een eer ees eet ef- efa efb efd efe eff efi efr efs eft eia eib eid eie eif eii ein eir eis eit eiu en- ena enb end ene enf eni enn enr ens ent enu era erb erd ere erf eri ern err ers ert eru es- esa esb esd ese esf esi esn esr ess est esu eta etb etd ete etf eti etn etr ets ett etu eu- eua eub eud eue euf eui eun eur eus eut faa fab fad fae faf fai fan far fas fat fau fba fbb fbd fbe fbf fbi fbn fbr fbs fbt fbu fda fdb fdd fde fdf fdi fdn fdr fds fdt fdu fea feb fed fee fef fei fen fer fes fet feu ffa ffd ffe fff ffi ffn ffr ffs fft ffu fia fib fid fie fif fii fin fir fis fit fiu fna fnb fnd fne fnf fni fnn fnr fns fnt fnu fra frb frd fre frf fri frn frr frs frt fru fsa fsb fsd fse fsf fsi fsn fsr fss fst fsu fta ftb ftd fte ftf fti ftn ftr fts ftt ftu fua fub fud fue fuf fui fun fur fus fut fuu i-d i-f ia- iaa iab iad iae iaf iai ian iar ias iat iau iba ibb ibd ibe ibf ibi ibn ibr ibs ibt ibu ida idb idd ide idf idi idn idr ids idt idu ie- iea ied iee ief iei ien ier ies iet ifa ifb ifd ife iff ifi ifn ifr ifs ift ifu iia iib iid iie iif iii iin iir iis iit iiu in- ina inb ind ine inf ini inn inr ins int inu ir- ira irb ird ire irf iri irn irr irs irt iru is- isa isb isd ise isf isi isn isr iss ist isu ita itb itd ite itf iti itn its itt itu iu- iua iub iud iue iui iur ius iut n-i naa nab nad nae naf nai nan nar nas nat nau nba nbb nbd nbe nbf nbi nbn nbr nbs nbt nbu nda ndb ndd nde ndf ndi ndn ndr nds ndt ndu ne- nea neb ned nee nef nei nen ner nes net neu nfa nfb nfd nfe nff nfi nfn nfr nfs nft nfu nia nib nid nie nif nii nin nir nis nit niu nna nnb nne nnf nni nnn nns nnt nnu nra nrb nrd nre nrf nri nrn nrr nrs nrt nru nsa nsb nsd nse nsf nsi nsn nsr nss nst nsu nta ntb ntd nte ntf nti ntn ntr nts ntt ntu nua nub nud nue nui nun nur nus nut nuu ra- raa rab rad rae raf rai ran rar ras rat rau rba rbb rbd rbe rbf rbi rbn rbr rbs rbt rbu rda rdb rdd rde rdf rdi rdn rdr rds rdt rdu re- rea reb red ree ref rei ren rer res ret reu rfa rfb rfd rfe rff rfi rfn rfr rfs rft rfu ria rib rid rie rif rii rin rir ris rit rna rnb rnd rni rnn rnr rns rnt rnu rra rrb rrd rrf rri rrn rrr rrs rrt rru rsa rsb rsd rse rsf rsi rsn rsr rss rst rsu rta rtb rtd rte rtf rti rtn rtr rts rtt rtu rua rub rud rue ruf rui run rur rus rut ruu saa sab sad sae saf sai san sar sas sat sau sba sbb sbd sbe sbf sbi sbn sbr sbs