-er a-a a-b a-i a-t aaa aab aae aaf aai aan aao aar aat aau aax ab- aba abb abe abf abi abn abo abr abt abu abx aea aeb aee aef aei aen aeo aer aet aeu aex af- afa afb afe aff afi afn afo afr aft afu afx ai- aia aib aie aif aii ain aio air ait aiu aix an- ana anb ane anf ani ann ano anr ant anu anx aoa aob aoe aof aoi aon aoo aor aot aou aox ar- ara arb are arf ari arn aro arr art aru arx at- ata atb ate atf ati atn ato atr att atu atx au- aua aub aue auf aui aun auo aur aut aux ax- axa axe axi axn axo axr axt axx b-u baa bab bae baf bai ban bao bar bat bau bax bba bbb bbe bbf bbi bbn bbo bbr bbt bbu bbx be- bea beb bee bef bei ben beo ber bet beu bex bfa bfb bfe bff bfi bfn bfo bfr bft bfu bfx bi- bia bib bie bif bii bin bio bir bit biu bix bna bnb bne bnf bni bnn bno bnr bnt bnu bnx boa bob boe bof boi bon boo bor bot bou box bra brb bre brf bri brn bro brr brt bru brx bta btb bte btf bti btn bto btr btt btu btx bua bub bue buf bui bun buo bur but buu bux bxb bxi bxn bxo bxx eaa eab eae eaf eai ean eao ear eat eau eax eba ebb ebe ebf ebi ebn ebo ebr ebt ebu ebx eea eeb eee eef een eeo eer eet eex ef- efa efb efe eff efi efo efr eft efx eia eib eie eif eii ein eio eir eit eiu eix en- ena enb ene enf eni enn eno enr ent enu eo- eoa eob eoe eof eoi eon eoo eor eot eou era erb ere erf eri ern ero err ert eru eta etb ete etf eti etn eto etr ett etu etx eu- eua eub eue euf eui eun eur eut eux ex- exa exe exi exo exr ext exu exx faa fab fae faf fai fan fao far fat fau fax fba fbb fbe fbf fbi fbn fbo fbr fbt fbu fbx fea feb fee fef fei fen feo fer fet feu fex ffa ffe fff ffi ffn ffo ffr fft ffu ffx fia fib fie fif fii fin fir fit fiu fix fna fnb fne fnf fni fnn fnr fnt fnu fnx foa fob foe fof foi fon foo for fot fou fox fra frb fre frf fri frn fro frr frt fru fta ftb fte ftf fti ftn fto ftr ftt ftu ftx fua fub fue fuf fui fun fuo fur fut fuu fux fxe fxi fxr fxt fxu fxx i-f ia- iaa iab iae iaf iai ian iao iar iat iau iba ibb ibe ibf ibi ibn ibo ibr ibt ibu ibx ie- iea iee ief iei ien ier iet iex ifa ifb ife iff ifi ifn ifo ifr ift ifu ifx iia iib iie iif iii iin iio iir iit iiu iix in- ina inb ine inf ini inn ino inr int inu inx io- ioa iob ioe iof ioi ion ioo ior iot iou ir- ira irb ire irf iri irn iro irr irt iru irx ita itb ite itf iti itn ito itt itu itx iu- iua iub iue iui iur iut ixe ixi ixn n-i naa nab nae naf nai nan nao nar nat nau nax nba nbb nbe nbf nbi nbn nbo nbr nbt nbu nbx ne- nea neb nee nef nei nen neo ner net neu nex nfa nfb nfe nff nfi nfn nfo nfr nft nfu nia nib nie nif nii nin nio nir nit niu nix nna nnb nne nnf nni nnn nno nnt nnu no- noa nob noe nof noi non noo nor not nou nox nra nrb nre nrf nri nrn nro nrr nrt nru nrx nta ntb nte ntf nti ntn nto ntr ntt ntu ntx nua nub nue nui nun nuo nur nut nuu nux nxt o-i oaa oab oae oaf oai oan oao oar oat oau oax ob- oba obb obe obf obi obn obo obr obt obu obx oea oeb oee oef oei oen oeo oer oet oex of- ofa ofb ofe off ofi ofn ofo ofr oft ofu ofx oia oib oie oif oii oin oio oir oit oiu on- ona onb one onf oni onn ono onr ont onu onx oo- ooa oob oof ooi oon ooo oor oot oox or- ora orb ore orf ori orn oro orr ort oru orx ot- ota otb ote otf oti otn oto otr ott otu ou- oua oue ouf oui oun ouo our out ox- oxa oxb oxf oxi oxn oxo oxt oxx ra- raa rab rae raf rai ran rao rar rat rau rax rba rbb rbe rbf rbi rbn rbo rbr rbt rbu rbx re- rea reb ree ref rei ren reo rer ret reu rex rfa rfb rfe rff rfi rfn rfo rfr rft rfu ria rib rie rif rii rin rio rir rit rix rna rnb rni rnn rno rnr rnt rnu roa rob roe rof roi ron roo ror rot rou rox rra rrb rrf rri rrn rrr rrt rru rta rtb rte rtf rti rtn rto rtr rtt rtu rtx rua rub rue ruf rui run ruo rur rut ruu rux rxr t-x taa tab tae taf tai tan tao tar tat tau tax tba tbb tbe tbf tbi tbn tbo tbr tbt tbu te- tea teb tee tef tei ten teo ter tet teu tex tfa tfb tfe tff tfi tfn tfo tfr tft tfu tfx tia tib tie tif tii tin tio tir tit tiu tix tna tnb tne tnf tni tnn tno tnr tnt tnx to- toa tob toe tof toi ton too tor tot tou tox tra trb tre trf tri