-up a-a a-b aaa aab aad aaf aan aao aap aar aas aau ab- aba abb abd abf abn abo abp abr abs abu ad- ada adb add adf adn ado adp adr ads adu af- afa afb afd aff afn afo afp afr afs afu an- ana anb and anf ann ano anp anr ans anu aoa aob aod aof aon aoo aop aor aos aou ap- apa apb apd apf apn apo app apr aps apu ar- ara arb ard arf arn aro arp arr ars aru as- asa asb asd asf asn aso asp asr ass asu au- aua aub aud auf aun auo aup aur aus b-p b-u baa bab bad baf ban bao bap bar bas bau bba bbb bbd bbf bbn bbo bbp bbr bbs bbu bda bdb bdd bdf bdo bdp bdr bds bdu bfa bfb bfd bff bfn bfo bfp bfr bfs bfu bna bnb bnd bnf bnn bno bnp bnr bns bnu boa bob bod bof bon boo bop bor bos bou bpa bpb bpd bpf bpn bpo bpp bpr bps bpu bra brb brd brf brn bro brp brr brs bru bsa bsb bsd bsf bsn bso bsp bsr bss bsu bua bub bud buf bun buo bup bur bus buu daa dab dad daf dan dao dap dar das dau dba dbb dbd dbf dbn dbo dbp dbr dbs dbu dda ddb ddd ddf ddn ddo ddp ddr dds ddu dfa dfb dfd dff dfn dfo dfp dfr dfs dfu dna dnb dnd dnf dnn dno dnp dnr dns doa dob dod dof don doo dop dor dos dou dpa dpb dpd dpf dpn dpo dpp dpr dps dpu dra drb drd drn dro drp drr drs dru dsa dsb dsd dsf dsn dso dsp dsr dss dsu dua dub dud duf dun duo dup dur dus faa fab fad faf fan fao fap far fas fau fba fbb fbd fbf fbn fbo fbp fbr fbs fbu fda fdb fdd fdf fdn fdo fdp fdr fds fdu ffa ffd fff ffn ffo ffp ffr ffs ffu fna fnb fnd fnf fnn fnp fnr fns fnu foa fob fof fon foo fop for fos fou fpa fpb fpd fpn fpo fpp fpr fps fpu fra frb frd frf frn fro frp frr frs fru fsa fsb fsd fsf fsn fso fsp fsr fss fsu fua fub fud fuf fun fuo fup fur fus fuu naa nab nad naf nan nao nap nar nas nau nba nbb nbd nbf nbn nbo nbp nbr nbs nbu nda ndb ndd ndf ndn ndo ndp ndr nds ndu nfa nfb nfd nff nfn nfo nfp nfr nfs nfu nna nnb nnf nnn nno nnp nns nnu no- noa nob nod nof non noo nop nor nos nou npa npb npd npf npn npo npp npr nps npu nra nrb nrd nrf nrn nro nrp nrr nrs nru nsa nsb nsd nsf nsn nso nsp nsr nss nsu nua nub nud nun nuo nup nur nus nuu oaa oab oad oaf oan oao oap oar oas oau ob- oba obb obd obf obn obo obp obr obs obu oda odb odd odf odn odo odp odr ods odu of- ofa ofb ofd off ofn ofo ofp ofr ofs ofu on- ona onb ond onf onn ono onp onr ons onu oo- ooa oob ood oof oon ooo oop oor oos op- opa opb opd opf opn opo opp opr ops or- ora orb ord orf orn oro orp orr ors oru os- osa osb osd osf osn oso osp osr oss osu ou- oua oud ouf oun ouo oup our ous p-p paa pab pad paf pan pao pap par pas pau pba pbb pbd pbf pbn pbo pbp pbr pbs pbu pda pdb pdd pdf pdn pdo pdp pdr pds pdu pfa pfb pfd pff pfn pfo pfp pfr pfs pfu pn- pna pnb pnd pnf pnn pno pnp pnr pns pnu poa pob pod pof pon poo pop por pos pou ppa ppb ppd ppf ppn ppo ppp ppr pps ppu pra prb prd prf prn pro prp prr prs pru ps- psa psb psd psf psn pso psp psr pss psu pua pub pud puf pun pup pur pus puu ra- raa rab rad raf ran rao rap rar ras rau rba rbb rbd rbf rbn rbo rbp rbr rbs rbu rda rdb rdd rdf rdn rdo rdp rdr rds rdu rfa rfb rfd rff rfn rfo rfp rfr rfs rfu rna rnb rnd rnn rno rnp rnr rns rnu roa rob rod rof ron roo rop ror ros rou rpa rpb rpd rpf rpn rpo rpp rpr rps rpu rra rrb rrd rrf rrn rrp rrr rrs rru rsa rsb rsd rsf rsn rso rsp rsr rss rsu rua rub rud ruf run ruo rup rur rus ruu saa sab sad saf san sao sap sar sas sau sba sbb sbd sbf sbn sbo sbp sbr sbs sbu sda sdb sdd sdf sdn sdo sdp sdr sds sdu sfa sfb sfd sff sfn sfo sfp sfr sfs sfu sna snb snd snf snn sno snp snr sns snu soa sob sod sof son soo sop sor sos sou spa spb spd spf spn spo spp spr sps spu sr- sra srb srd srf srn sro srp srr srs ss- ssa ssb ssd ssf ssn sso ssp ssr sss ssu sua sub sud suf sun suo sup sur sus suu ua- uaa uab uad uaf uan uao uap uar uas uau uba ubb ubf ubn ubo ubp ubr ubs ubu uda udb udd udf udn udo udp udr uds udu ufa ufd uff ufn ufo ufp ufr ufs ufu un- una unb und unf unn uno unp unr uns unu uoa uob uod uon uoo uop uor uos up- upa upb upd upf upn upo upp upr ups upu ur- ura urb urd urf urn uro urp urr urs uru usa usb usd usf usn uso usp usr uss usu uua uun