a-a a-b a-i a-t aaa aab aad aai aan aao aar aas aat aau ab- aba abb abd abi abn abo abr abs abt abu ad- ada adb add adi adn ado adr ads adt adu ai- aia aib aid aii ain aio air ais ait aiu an- ana anb and ani ann ano anr ans ant anu aoa aob aod aoi aon aoo aor aos aot aou ar- ara arb ard ari arn aro arr ars art aru as- asa asb asd asi asn aso asr ass ast asu at- ata atb atd ati atn ato atr ats att atu au- aua aub aud aui aun auo aur aus aut b-u baa bab bad bai ban bao bar bas bat bau bba bbb bbd bbi bbn bbo bbr bbs bbt bbu bda bdb bdd bdi bdo bdr bds bdt bdu bi- bia bib bid bii bin bio bir bis bit biu bna bnb bnd bni bnn bno bnr bns bnt bnu boa bob bod boi bon boo bor bos bot bou bra brb brd bri brn bro brr brs brt bru bsa bsb bsd bsi bsn bso bsr bss bst bsu bta btb btd bti btn bto btr bts btt btu bua bub bud bui bun buo bur bus but buu daa dab dad dai dan dao dar das dat dau dba dbb dbd dbi dbn dbo dbr dbs dbt dbu dda ddb ddd ddi ddn ddo ddr dds ddt ddu di- dia dib did dii din dio dir dis dit diu dna dnb dnd dni dnn dno dnr dns dnt doa dob dod doi don doo dor dos dot dou dra drb drd dri drn dro drr drs drt dru dsa dsb dsd dsi dsn dso dsr dss dst dsu dta dtb dtd dti dtn dto dtr dts dtt dtu dua dub dud dui dun duo dur dus dut i-d ia- iaa iab iad iai ian iao iar ias iat iau iba ibb ibd ibi ibn ibo ibr ibs ibt ibu ida idb idd idi idn ido idr ids idt idu iia iib iid iii iin iio iir iis iit iiu in- ina inb ind ini inn ino inr ins int inu io- ioa iob iod ioi ion ioo ior ios iot iou ir- ira irb ird iri irn iro irr irs irt iru is- isa isb isd isi isn iso isr iss ist isu ita itb itd iti itn ito its itt itu iu- iua iub iud iui iur ius iut n-i naa nab nad nai nan nao nar nas nat nau nba nbb nbd nbi nbn nbo nbr nbs nbt nbu nda ndb ndd ndi ndn ndo ndr nds ndt ndu nia nib nid nii nin nio nir nis nit niu nna nnb nni nnn nno nns nnt nnu no- noa nob nod noi non noo nor nos not nou nra nrb nrd nri nrn nro nrr nrs nrt nru nsa nsb nsd nsi nsn nso nsr nss nst nsu nta ntb ntd nti ntn nto ntr nts ntt ntu nua nub nud nui nun nuo nur nus nut nuu o-i oaa oab oad oai oan oao oar oas oat oau ob- oba obb obd obi obn obo obr obs obt obu oda odb odd odi odn odo odr ods odt odu oia oib oid oii oin oio oir ois oit oiu on- ona onb ond oni onn ono onr ons ont onu oo- ooa oob ood ooi oon ooo oor oos oot or- ora orb ord ori orn oro orr ors ort oru os- osa osb osd osi osn oso osr oss ost osu ot- ota otb otd oti otn oto otr ots ott otu ou- oua oud oui oun ouo our ous out ra- raa rab rad rai ran rao rar ras rat rau rba rbb rbd rbi rbn rbo rbr rbs rbt rbu rda rdb rdd rdi rdn rdo rdr rds rdt rdu ria rib rid rii rin rio rir ris rit rna rnb rnd rni rnn rno rnr rns rnt rnu roa rob rod roi ron roo ror ros rot rou rra rrb rrd rri rrn rrr rrs rrt rru rsa rsb rsd rsi rsn rso rsr rss rst rsu rta rtb rtd rti rtn rto rtr rts rtt rtu rua rub rud rui run ruo rur rus rut ruu saa sab sad sai san sao sar sas sat sau sba sbb sbd sbi sbn sbo sbr sbs sbt sbu sda sdb sdd sdi sdn sdo sdr sds sdt sdu sia sib sid sii sin sio sir sis sit siu sna snb snd sni snn sno snr sns snt snu soa sob sod soi son soo sor sos sot sou sr- sra srb srd sri srn sro srr srs srt ss- ssa ssb ssd ssi ssn sso ssr sss sst ssu sta stb std sti stn sto str sts stt stu sua sub sud sui sun suo sur sus sut suu taa tab tad tai tan tao tar tas tat tau tba tbb tbd tbi tbn tbo tbr tbs tbt tbu tda tdb tdd tdi tdn tdo tdr tds tdt tdu tia tib tid tii tin tio tir tis tit tiu tna tnb tnd tni tnn tno tnr tns tnt to- toa tob tod toi ton too tor tos tot tou tra trb trd tri trn tro trr trs trt tru tsa tsb tsd tsi tsn tso tsr tss tst tsu tta ttb ttd tti ttn tto ttr tts ttt ttu tua tub tud tui tun tuo tur tus tut tuu ua- uaa uab uad uai uan uao uar uas uat uau uba ubb ubi ubn ubo ubr ubs ubt ubu uda udb udd udi udn udo udr uds udt udu uia uib uid uii uin uio uir uis uit uiu un- una unb und uni unn uno unr uns unt unu uoa uob uod uon uoo uor uos uot ur- ura urb urd uri urn uro urr urs urt uru usa usb usd usi usn uso usr uss ust usu uta