a-a a-b aaa aab aad aam aan aao aar aas aau ab- aba abb abd abm abn abo abr abs abu ad- ada adb add adm adn ado adr ads adu ama amb amd amm amn amo amr ams amu an- ana anb and anm ann ano anr ans anu aoa aob aod aom aon aoo aor aos aou ar- ara arb ard arm arn aro arr ars aru as- asa asb asd asm asn aso asr ass asu au- aua aub aud aum aun auo aur aus b-u baa bab bad bam ban bao bar bas bau bba bbb bbd bbm bbn bbo bbr bbs bbu bda bdb bdd bdm bdo bdr bds bdu bma bmb bmd bmm bmn bmo bmr bms bmu bna bnb bnd bnn bno bnr bns bnu boa bob bod bom bon boo bor bos bou bra brb brd brm brn bro brr brs bru bsa bsb bsd bsm bsn bso bsr bss bsu bua bub bud bum bun buo bur bus buu daa dab dad dam dan dao dar das dau dba dbb dbd dbm dbn dbo dbr dbs dbu dda ddb ddd ddm ddn ddo ddr dds ddu dma dmb dmd dmm dmn dmo dmr dms dmu dna dnb dnd dnm dnn dno dnr dns doa dob dod dom don doo dor dos dou dra drb drd drm drn dro drr drs dru dsa dsb dsd dsm dsn dso dsr dss dsu dua dub dud dum dun duo dur dus m-o m-r maa mab mad mam man mao mar mas mau mba mbb mbd mbm mbo mbr mbs mbu mda mdb mdd mdm mdn mdo mdr mds mdu mma mmb mmd mmm mmn mmo mmr mms mmu mna mnb mnm mnn mno mnr mns mnu moa mob mod mom mon moo mor mos mou mra mrb mrd mrm mrn mro mrr mrs mru msa msb msd msm msn mso msr mss msu mua mub mud mum mun mur mus muu naa nab nad nam nan nao nar nas nau nba nbb nbd nbm nbn nbo nbr nbs nbu nda ndb ndd ndm ndn ndo ndr nds ndu nma nmb nmd nmm nmn nmo nmr nms nmu nna nnb nnm nnn nno nns nnu no- noa nob nod nom non noo nor nos nou nra nrb nrd nrm nrn nro nrr nrs nru nsa nsb nsd nsm nsn nso nsr nss nsu nua nub nud num nun nuo nur nus nuu oaa oab oad oam oan oao oar oas oau ob- oba obb obd obm obn obo obr obs obu oda odb odd odm odn odo odr ods odu om- oma omb omd omm omn omo omr oms omu on- ona onb ond onn ono onr ons onu oo- ooa oob ood oom oon ooo oor oos or- ora orb ord orm orn oro orr ors oru os- osa osb osd osm osn oso osr oss osu ou- oua oud oum oun ouo our ous ra- raa rab rad ram ran rao rar ras rau rba rbb rbd rbm rbn rbo rbr rbs rbu rda rdb rdd rdm rdn rdo rdr rds rdu rma rmb rmd rmm rmn rmo rmr rms rna rnb rnd rnm rnn rno rnr rns rnu roa rob rod rom ron roo ror ros rou rra rrb rrd rrm rrn rrr rrs rru rsa rsb rsd rsm rsn rso rsr rss rsu rua rub rud rum run ruo rur rus ruu saa sab sad sam san sao sar sas sau sba sbb sbd sbm sbn sbo sbr sbs sbu sda sdb sdd sdm sdn sdo sdr sds sdu sma smb smd smm smn smo smr sms smu sna snb snd snm snn sno snr sns snu soa sob sod som son soo sor sos sou sr- sra srb srd srm srn sro srr srs ss- ssa ssb ssd ssm ssn sso ssr sss ssu sua sub sud sum sun suo sur sus suu ua- uaa uab uad uam uan uao uar uas uau uba ubb ubn ubo ubr ubs ubu uda udb udd udm udn udo udr uds udu um- uma umb umd umm umn umo umr ums umu un- una unb und unm unn uno unr uns unu uoa uob uod uom uon uoo uor uos ur- ura urb urd urm urn uro urr urs uru usa usb usd usm usn uso usr uss usu uua uum uun uur uus uuu