a-a a-b aaa aab aad aah aan aao aar aas aau ab- aba abb abd abh abn abo abr abs abu ad- ada adb add adh adn ado adr ads adu aha ahb ahd ahh ahn aho ahr ahs ahu an- ana anb and anh ann ano anr ans anu aoa aob aod aoh aon aoo aor aos aou ar- ara arb ard arh arn aro arr ars aru as- asa asb asd ash asn aso asr ass asu au- aua aub aud auh aun auo aur aus b-u baa bab bad bah ban bao bar bas bau bba bbb bbd bbh bbn bbo bbr bbs bbu bda bdb bdd bdh bdo bdr bds bdu bha bhb bhd bhh bho bhr bhs bhu bna bnb bnd bnn bno bnr bns bnu boa bob bod boh bon boo bor bos bou bra brb brd brh brn bro brr brs bru bsa bsb bsd bsh bsn bso bsr bss bsu bua bub bud buh bun buo bur bus buu daa dab dad dah dan dao dar das dau dba dbb dbd dbh dbn dbo dbr dbs dbu dda ddb ddd ddh ddn ddo ddr dds ddu dh- dha dhb dhd dhh dho dhr dhs dhu dna dnb dnd dnh dnn dno dnr dns doa dob dod doh don doo dor dos dou dra drb drd drn dro drr drs dru dsa dsb dsd dsh dsn dso dsr dss dsu dua dub dud duh dun duo dur dus haa hab had hah han hao har has hau hba hbb hbd hbh hbn hbo hbr hbs hbu hda hdb hdd hdh hdn hdo hdr hds hdu hha hhb hhd hhh hhn hho hhr hhs hhu hna hnb hnd hnh hnn hno hns hnu hoa hob hod hoh hon hoo hor hos hou hr- hra hrb hrd hrh hrn hro hrr hrs hru hsa hsb hsd hsh hsn hsr hss hsu hua hub hud huh hun huo hur hus huu naa nab nad nah nan nao nar nas nau nba nbb nbd nbn nbo nbr nbs nbu nda ndb ndd ndh ndn ndo ndr nds ndu nha nhb nhd nhh nhn nhr nhs nhu nna nnb nnh nnn nno nns nnu no- noa nob nod noh non noo nor nos nou nra nrb nrd nrn nro nrr nrs nru nsa nsb nsd nsh nsn nso nsr nss nsu nua nub nud nuh nun nuo nur nus nuu oaa oab oad oah oan oao oar oas oau ob- oba obb obd obh obn obo obr obs obu oda odb odd odh odn odo odr ods odu oha ohd ohh ohn oho ohr ohs ohu on- ona onb ond onh onn ono onr ons onu oo- ooa oob ood ooh oon ooo oor oos or- ora orb ord orh orn oro orr ors oru os- osa osb osd osh osn oso osr oss osu ou- oua oud ouh oun ouo our ous ra- raa rab rad rah ran rao rar ras rau rba rbb rbd rbh rbn rbo rbr rbs rbu rda rdb rdd rdh rdn rdo rdr rds rdu rh- rha rhb rhd rhh rhn rho rhr rhs rhu rna rnb rnd rnh rnn rno rnr rns rnu roa rob rod roh ron roo ror ros rou rra rrb rrd rrh rrn rrr rrs rru rsa rsb rsd rsh rsn rso rsr rss rsu rua rub rud ruh run ruo rur rus ruu saa sab sad sah san sao sar sas sau sba sbb sbd sbh sbn sbo sbr sbs sbu sda sdb sdd sdh sdn sdo sdr sds sdu sh- sha shb shd shh shn sho shr shs shu sna snb snd snn sno snr sns snu soa sob sod soh son soo sor sos sou sr- sra srb srd srh srn sro srr srs ss- ssa ssb ssd ssh ssn sso ssr sss ssu sua sub sud suh sun suo sur sus suu ua- uaa uab uad uah uan uao uar uas uau uba ubb ubh ubn ubo ubr ubs ubu uda udb udd udn udo udr uds udu uha uhb uhd uhh uho uhr uhs uhu un- una unb und unh unn uno unr uns unu uoa uob uod uon uoo uor uos ur- ura urb urd urn uro urr urs uru usa usb usd ush usn uso usr uss usu uua uun uur uus uuu