-up a-a a-b a-t aaa aab aad aan aao aap aar aas aat aau ab- aba abb abd abn abo abp abr abs abt abu ad- ada adb add adn ado adp adr ads adt adu an- ana anb and ann ano anp anr ans ant anu aoa aob aod aon aoo aop aor aos aot aou ap- apa apb apd apn apo app apr aps apt apu ar- ara arb ard arn aro arp arr ars art aru as- asa asb asd asn aso asp asr ass ast asu at- ata atb atd atn ato atp atr ats att atu au- aua aub aud aun auo aup aur aus aut b-p b-u baa bab bad ban bao bap bar bas bat bau bba bbb bbd bbn bbo bbp bbr bbs bbt bbu bda bdb bdd bdo bdp bdr bds bdt bdu bna bnb bnd bnn bno bnp bnr bns bnt bnu boa bob bod bon boo bop bor bos bot bou bpa bpb bpd bpn bpo bpp bpr bps bpt bpu bra brb brd brn bro brp brr brs brt bru bsa bsb bsd bsn bso bsp bsr bss bst bsu bta btb btd btn bto btp btr bts btt btu bua bub bud bun buo bup bur bus but buu daa dab dad dan dao dap dar das dat dau dba dbb dbd dbn dbo dbp dbr dbs dbt dbu dda ddb ddd ddn ddo ddp ddr dds ddt ddu dna dnb dnd dnn dno dnp dnr dns dnt doa dob dod don doo dop dor dos dot dou dpa dpb dpd dpn dpo dpp dpr dps dpt dpu dra drb drd drn dro drp drr drs drt dru dsa dsb dsd dsn dso dsp dsr dss dst dsu dta dtb dtd dtn dto dtp dtr dts dtt dtu dua dub dud dun duo dup dur dus dut naa nab nad nan nao nap nar nas nat nau nba nbb nbd nbn nbo nbp nbr nbs nbt nbu nda ndb ndd ndn ndo ndp ndr nds ndt ndu nna nnb nnn nno nnp nns nnt nnu no- noa nob nod non noo nop nor nos not nou npa npb npd npn npo npp npr nps npt npu nra nrb nrd nrn nro nrp nrr nrs nrt nru nsa nsb nsd nsn nso nsp nsr nss nst nsu nta ntb ntd ntn nto ntp ntr nts ntt ntu nua nub nud nun nuo nup nur nus nut nuu oaa oab oad oan oao oap oar oas oat oau ob- oba obb obd obn obo obp obr obs obt obu oda odb odd odn odo odp odr ods odt odu on- ona onb ond onn ono onp onr ons ont onu oo- ooa oob ood oon ooo oop oor oos oot op- opa opb opd opn opo opp opr ops opt or- ora orb ord orn oro orp orr ors ort oru os- osa osb osd osn oso osp osr oss ost osu ot- ota otb otd otn oto otp otr ots ott otu ou- oua oud oun ouo oup our ous out p-p paa pab pad pan pao pap par pas pat pau pba pbb pbd pbn pbo pbp pbr pbs pbt pbu pda pdb pdd pdn pdo pdp pdr pds pdt pdu pn- pna pnb pnd pnn pno pnp pnr pns pnt pnu poa pob pod pon poo pop por pos pot pou ppa ppb ppd ppn ppo ppp ppr pps ppt ppu pra prb prd prn pro prp prr prs prt pru ps- psa psb psd psn pso psp psr pss pst psu pt- pta ptb ptd ptn pto ptp ptr pts ptt ptu pua pub pud pun pup pur pus put puu ra- raa rab rad ran rao rap rar ras rat rau rba rbb rbd rbn rbo rbp rbr rbs rbt rbu rda rdb rdd rdn rdo rdp rdr rds rdt rdu rna rnb rnd rnn rno rnp rnr rns rnt rnu roa rob rod ron roo rop ror ros rot rou rpa rpb rpd rpn rpo rpp rpr rps rpt rpu rra rrb rrd rrn rrp rrr rrs rrt rru rsa rsb rsd rsn rso rsp rsr rss rst rsu rta rtb rtd rtn rto rtp rtr rts rtt rtu rua rub rud run ruo rup rur rus rut ruu saa sab sad san sao sap sar sas sat sau sba sbb sbd sbn sbo sbp sbr sbs sbt sbu sda sdb sdd sdn sdo sdp sdr sds sdt sdu sna snb snd snn sno snp snr sns snt snu soa sob sod son soo sop sor sos sot sou spa spb spd spn spo spp spr sps spt spu sr- sra srb srd srn sro srp srr srs srt ss- ssa ssb ssd ssn sso ssp ssr sss sst ssu sta stb std stn sto stp str sts stt stu sua sub sud sun suo sup sur sus sut suu taa tab tad tan tao tap tar tas tat tau tba tbb tbd tbn tbo tbp tbr tbs tbt tbu tda tdb tdd tdn tdo tdp tdr tds tdt tdu tna tnb tnd tnn tno tnp tnr tns tnt to- toa tob tod ton too top tor tos tot tou tpa tpb tpd tpn tpo tpp tpr tps tpt tpu tra trb trd trn tro trp trr trs trt tru tsa tsb tsd tsn tso tsp tsr tss tst tsu tta ttb ttd ttn tto ttp ttr tts ttt ttu tua tub tud tun tuo tup tur tus tut tuu ua- uaa uab uad uan uao uap uar uas uat uau uba ubb ubn ubo ubp ubr ubs ubt ubu uda udb udd udn udo udp udr uds udt udu un- una unb und unn uno unp unr uns unt unu uoa uob uod uon uoo uop uor uos uot up- upa upb upd upn upo upp upr ups upt upu ur- ura urb urd urn uro urp urr urs urt uru usa usb usd usn uso usp usr uss ust usu uta