-er a-a a-b a-i a-t aaa aab aad aae aai aan aao aar aat aau ab- aba abb abd abe abi abn abo abr abt abu ad- ada adb add ade adi adn ado adr adt adu aea aeb aed aee aei aen aeo aer aet aeu ai- aia aib aid aie aii ain aio air ait aiu an- ana anb and ane ani ann ano anr ant anu aoa aob aod aoe aoi aon aoo aor aot aou ar- ara arb ard are ari arn aro arr art aru at- ata atb atd ate ati atn ato atr att atu au- aua aub aud aue aui aun auo aur aut b-u baa bab bad bae bai ban bao bar bat bau bba bbb bbd bbe bbi bbn bbo bbr bbt bbu bda bdb bdd bde bdi bdo bdr bdt bdu be- bea beb bed bee bei ben beo ber bet beu bi- bia bib bid bie bii bin bio bir bit biu bna bnb bnd bne bni bnn bno bnr bnt bnu boa bob bod boe boi bon boo bor bot bou bra brb brd bre bri brn bro brr brt bru bta btb btd bte bti btn bto btr btt btu bua bub bud bue bui bun buo bur but buu daa dab dad dae dai dan dao dar dat dau dba dbb dbd dbe dbi dbn dbo dbr dbt dbu dda ddb ddd dde ddi ddn ddo ddr ddt ddu de- dea deb ded dee dei den deo der det deu di- dia dib did die dii din dio dir dit diu dna dnb dnd dne dni dnn dno dnr dnt doa dob dod doe doi don doo dor dot dou dra drb drd dre dri drn dro drr drt dru dta dtb dtd dte dti dtn dto dtr dtt dtu dua dub dud due dui dun duo dur dut eaa eab ead eae eai ean eao ear eat eau eba ebb ebd ebe ebi ebn ebo ebr ebt ebu ed- eda edb edd ede edi edn edo edr edt edu eea eeb eed eee een eeo eer eet eia eib eid eie eii ein eio eir eit eiu en- ena enb end ene eni enn eno enr ent enu eo- eoa eob eod eoe eoi eon eoo eor eot eou era erb erd ere eri ern ero err ert eru eta etb etd ete eti etn eto etr ett etu eu- eua eub eud eue eui eun eur eut i-d ia- iaa iab iad iae iai ian iao iar iat iau iba ibb ibd ibe ibi ibn ibo ibr ibt ibu ida idb idd ide idi idn ido idr idt idu ie- iea ied iee iei ien ier iet iia iib iid iie iii iin iio iir iit iiu in- ina inb ind ine ini inn ino inr int inu io- ioa iob iod ioe ioi ion ioo ior iot iou ir- ira irb ird ire iri irn iro irr irt iru ita itb itd ite iti itn ito itt itu iu- iua iub iud iue iui iur iut n-i naa nab nad nae nai nan nao nar nat nau nba nbb nbd nbe nbi nbn nbo nbr nbt nbu nda ndb ndd nde ndi ndn ndo ndr ndt ndu ne- nea neb ned nee nei nen neo ner net neu nia nib nid nie nii nin nio nir nit niu nna nnb nne nni nnn nno nnt nnu no- noa nob nod noe noi non noo nor not nou nra nrb nrd nre nri nrn nro nrr nrt nru nta ntb ntd nte nti ntn nto ntr ntt ntu nua nub nud nue nui nun nuo nur nut nuu o-i oaa oab oad oae oai oan oao oar oat oau ob- oba obb obd obe obi obn obo obr obt obu oda odb odd ode odi odn odo odr odt odu oea oeb oed oee oei oen oeo oer oet oia oib oid oie oii oin oio oir oit oiu on- ona onb ond one oni onn ono onr ont onu oo- ooa oob ood ooi oon ooo oor oot or- ora orb ord ore ori orn oro orr ort oru ot- ota otb otd ote oti otn oto otr ott otu ou- oua oud oue oui oun ouo our out ra- raa rab rad rae rai ran rao rar rat rau rba rbb rbd rbe rbi rbn rbo rbr rbt rbu rda rdb rdd rde rdi rdn rdo rdr rdt rdu re- rea reb red ree rei ren reo rer ret reu ria rib rid rie rii rin rio rir rit rna rnb rnd rni rnn rno rnr rnt rnu roa rob rod roe roi ron roo ror rot rou rra rrb rrd rri rrn rrr rrt rru rta rtb rtd rte rti rtn rto rtr rtt rtu rua rub rud rue rui run ruo rur rut ruu taa tab tad tae tai tan tao tar tat tau tba tbb tbd tbe tbi tbn tbo tbr tbt tbu tda tdb tdd tde tdi tdn tdo tdr tdt tdu te- tea teb ted tee tei ten teo ter tet teu tia tib tid tie tii tin tio tir tit tiu tna tnb tnd tne tni tnn tno tnr tnt to- toa tob tod toe toi ton too tor tot tou tra trb trd tre tri trn tro trr trt tru tta ttb ttd tte tti ttn tto ttr ttt ttu tua tub tud tue tui tun tuo tur tut tuu ua- uaa uab uad uae uai uan uao uar uat uau uba ubb ube ubi ubn ubo ubr ubt ubu uda udb udd ude udi udn udo udr udt udu uea ueb ued uee uei uen uer uet uia uib uid uie uii uin uio uir uit uiu un- una unb und une uni unn uno unr unt unu uoa uob uod uoe uon uoo uor uot ur- ura urb urd ure uri urn uro urr urt uru uta utb utd ute uti utn uto