a-a a-b aaa aab aaf aah aam aan aao aar aas aau ab- aba abb abf abh abm abn abo abr abs abu af- afa afb aff afh afm afn afo afr afs afu aha ahb ahf ahh ahm ahn aho ahr ahs ahu ama amb amf amh amm amn amo amr ams amu an- ana anb anf anh anm ann ano anr ans anu aoa aob aof aoh aom aon aoo aor aos aou ar- ara arb arf arh arm arn aro arr ars aru as- asa asb asf ash asm asn aso asr ass asu au- aua aub auf auh aum aun auo aur aus b-u baa bab baf bah bam ban bao bar bas bau bba bbb bbf bbh bbm bbn bbo bbr bbs bbu bfa bfb bff bfh bfm bfn bfo bfr bfs bfu bha bhb bhf bhh bhm bho bhr bhs bhu bma bmb bmf bmh bmm bmn bmo bmr bms bmu bna bnb bnf bnn bno bnr bns bnu boa bob bof boh bom bon boo bor bos bou bra brb brf brh brm brn bro brr brs bru bsa bsb bsf bsh bsm bsn bso bsr bss bsu bua bub buf buh bum bun buo bur bus buu faa fab faf fah fam fan fao far fas fau fba fbb fbf fbh fbm fbn fbo fbr fbs fbu ffa fff ffh ffm ffn ffo ffr ffs ffu fha fhb fhf fhh fhm fhn fho fhr fhs fma fmb fmf fmh fmm fmn fmo fmr fms fmu fna fnb fnf fnh fnm fnn fnr fns fnu foa fob fof foh fom fon foo for fos fou fra frb frf frh frm frn fro frr frs fru fsa fsb fsf fsh fsm fsn fso fsr fss fsu fua fub fuf fum fun fuo fur fus fuu haa hab haf hah ham han hao har has hau hba hbb hbf hbh hbm hbn hbo hbr hbs hbu hfa hfb hff hfh hfm hfn hfo hfr hfs hfu hha hhb hhf hhh hhm hhn hho hhr hhs hhu hma hmb hmf hmh hmm hmo hmr hms hmu hna hnb hnf hnh hnn hno hns hnu hoa hob hof hoh hom hon hoo hor hos hou hr- hra hrb hrf hrh hrm hrn hro hrr hrs hru hsa hsb hsf hsh hsm hsn hsr hss hsu hua hub huf huh hum hun huo hur hus huu m-f m-o m-r maa mab maf mah mam man mao mar mas mau mba mbb mbf mbh mbm mbo mbr mbs mbu mfa mfb mff mfh mfm mfn mfo mfr mfs mfu mha mhf mhh mhm mhn mho mhr mhs mhu mma mmb mmf mmh mmm mmn mmo mmr mms mmu mna mnb mnf mnm mnn mno mnr mns mnu moa mob mof moh mom mon moo mor mos mou mra mrb mrf mrh mrm mrn mro mrr mrs mru msa msb msf msh msm msn mso msr mss msu mua mub muf muh mum mun mur mus muu naa nab naf nah nam nan nao nar nas nau nba nbb nbf nbm nbn nbo nbr nbs nbu nfa nfb nff nfn nfo nfr nfs nfu nha nhb nhf nhh nhm nhn nhr nhs nhu nma nmb nmh nmm nmn nmo nmr nms nmu nna nnb nnf nnh nnm nnn nno nns nnu no- noa nob nof noh nom non noo nor nos nou nra nrb nrf nrm nrn nro nrr nrs nru nsa nsb nsf nsh nsm nsn nso nsr nss nsu nua nub nuh num nun nuo nur nus nuu oaa oab oaf oah oam oan oao oar oas oau ob- oba obb obf obh obm obn obo obr obs obu of- ofa ofb off ofm ofn ofo ofr ofs ofu oha ohf ohh ohm ohn oho ohr ohs ohu om- oma omb omf omh omm omn omo omr oms omu on- ona onb onf onh onn ono onr ons onu oo- ooa oob oof ooh oom oon ooo oor oos or- ora orb orf orh orm orn oro orr ors oru os- osa osb osf osh osm osn oso osr oss osu ou- oua ouf ouh oum oun ouo our ous ra- raa rab raf rah ram ran rao rar ras rau rba rbb rbf rbh rbm rbn rbo rbr rbs rbu rfa rfb rff rfh rfm rfn rfo rfr rfs rfu rh- rha rhb rhf rhh rhm rhn rho rhr rhs rhu rma rmb rmf rmh rmm rmn rmo rmr rms rna rnb rnh rnm rnn rno rnr rns rnu roa rob rof roh rom ron roo ror ros rou rra rrb rrf rrh rrm rrn rrr rrs rru rsa rsb rsf rsh rsm rsn rso rsr rss rsu rua rub ruf ruh rum run ruo rur rus ruu saa sab saf sah sam san sao sar sas sau sba sbb sbf sbh sbm sbn sbo sbr sbs sbu sfa sfb sff sfh sfm sfn sfo sfr sfs sfu sh- sha shb shf shh shm shn sho shr shs shu sma smb smf smh smm smn smo smr sms smu sna snb snf snm snn sno snr sns snu soa sob sof soh som son soo sor sos sou sr- sra srb srf srh srm srn sro srr srs ss- ssa ssb ssf ssh ssm ssn sso ssr sss ssu sua sub suf suh sum sun suo sur sus suu ua- uaa uab uaf uah uam uan uao uar uas uau uba ubb ubf ubh ubn ubo ubr ubs ubu ufa uff ufh ufm ufn ufo ufr ufs ufu uha uhb uhf uhh uhm uho uhr uhs uhu um- uma umb umf umh umm umn umo umr ums umu un- una unb unf unh unm unn uno unr uns unu uoa uob uom uon uoo uor uos ur- ura urb urf urm urn uro urr urs uru usa usb usf ush usm usn uso usr uss usu uua uum uun uur uus uuu