-er -up a-a a-b a-c a-t aaa aab aac aad aae aao aap aar aas aat aau ab- aba abb abc abd abe abo abp abr abs abt abu ac- aca acb acc acd ace aco acp acr acs act acu ad- ada adb adc add ade ado adp adr ads adt adu aea aeb aec aed aee aeo aep aer aes aet aeu aoa aob aoc aod aoe aoo aop aor aos aot aou ap- apa apb apc apd ape apo app apr aps apt apu ar- ara arb arc ard are aro arp arr ars art aru as- asa asb asc asd ase aso asp asr ass ast asu at- ata atb atc atd ate ato atp atr ats att atu au- aua aub auc aud aue auo aup aur aus aut b-p b-u baa bab bac bad bae bao bap bar bas bat bau bba bbb bbc bbd bbe bbo bbp bbr bbs bbt bbu bca bcb bcc bcd bce bco bcp bcr bcs bct bcu bda bdb bdc bdd bde bdo bdp bdr bds bdt bdu be- bea beb bec bed bee beo bep ber bes bet beu boa bob boc bod boe boo bop bor bos bot bou bpa bpb bpc bpd bpe bpo bpp bpr bps bpt bpu bra brb brd bre bro brp brr brs brt bru bsa bsb bsc bsd bse bso bsp bsr bss bst bsu bta btb btc btd bte bto btp btr bts btt btu bua bub buc bud bue buo bup bur bus but buu c-- caa cab cac cad cae cao cap car cas cat cau cba cbb cbc cbd cbe cbo cbp cbr cbs cbt cbu cca ccb ccc ccd cce cco ccp ccr ccs cct ccu cda cdb cdc cdd cde cdo cdp cdr cds cdt cdu ce- cea ceb cec ced cee ceo cep cer ces cet ceu co- coa cob coc cod coe coo cop cor cos cot cou cpa cpb cpc cpd cpe cpo cpp cpr cps cpt cpu cra crb crc crd cre cro crp crr crs crt cru csa csb csc csd cse cso csp csr css cst csu cta ctb ctc ctd cte cto ctp ctr cts ctt ctu cua cub cuc cud cue cuo cup cur cus cut cuu daa dab dac dad dae dao dap dar das dat dau dba dbb dbc dbd dbe dbo dbp dbr dbs dbt dbu dca dcb dcc dcd dce dco dcp dcr dcs dct dcu dda ddb ddc ddd dde ddo ddp ddr dds ddt ddu de- dea deb dec ded dee deo dep der des det deu doa dob doc dod doe doo dop dor dos dot dou dpa dpb dpc dpd dpe dpo dpp dpr dps dpt dpu dra drb drc drd dre dro drp drr drs drt dru dsa dsb dsc dsd dse dso dsp dsr dss dst dsu dta dtb dtc dtd dte dto dtp dtr dts dtt dtu dua dub duc dud due duo dup dur dus dut eaa eab eac ead eae eao eap ear eas eat eau eba ebb ebc ebd ebe ebo ebp ebr ebs ebt ebu ec- eca ecb ecc ecd ece eco ecr ecs ect ecu ed- eda edb edc edd ede edo edp edr eds edt edu eea eeb eec eed eee eeo eep eer ees eet eo- eoa eob eoc eod eoe eoo eop eor eos eot eou ep- epa epb epc epd epe epo epp epr eps ept epu era erb erc erd ere ero erp err ers ert eru es- esa esb esc esd ese eso esp esr ess est esu eta etb etc etd ete eto etp etr ets ett etu eu- eua eub euc eud eue eup eur eus eut oaa oab oac oad oae oao oap oar oas oat oau ob- oba obb obc obd obe obo obp obr obs obt obu oc- oca ocb occ ocd oco ocp ocr ocs oct ocu oda odb odc odd ode odo odp odr ods odt odu oea oeb oec oed oee oeo oep oer oes oet oo- ooa oob ooc ood ooo oop oor oos oot op- opa opb opc opd ope opo opp opr ops opt or- ora orb orc ord ore oro orp orr ors ort oru os- osa osb osc osd ose oso osp osr oss ost osu ot- ota otb otc otd ote oto otp otr ots ott otu ou- oua ouc oud oue ouo oup our ous out p-p paa pab pac pad pae pao pap par pas pat pau pba pbb pbc pbd pbe pbo pbp pbr pbs pbt pbu pca pcb pcc pcd pce pco pcp pcr pcs pct pcu pda pdb pdc pdd pde pdo pdp pdr pds pdt pdu pea peb pec ped pee peo pep per pes pet peu poa pob poc pod poe poo pop por pos pot pou ppa ppb ppc ppd ppe ppo ppp ppr pps ppt ppu pra prb prc prd pre pro prp prr prs prt pru ps- psa psb psc psd pse pso psp psr pss pst psu pt- pta ptb ptc ptd pte pto ptp ptr pts ptt ptu pua pub puc pud pue pup pur pus put puu ra- raa rab rac rad rae rao rap rar ras rat rau rba rbb rbc rbd rbe rbo rbp rbr rbs rbt rbu rca rcb rcc rcd rce rco rcp rcr rcs rct rcu rda rdb rdc rdd rde rdo rdp rdr rds rdt rdu re- rea reb rec red ree reo rep rer res ret reu roa rob roc rod roe roo rop ror ros rot rou rpa rpb rpc rpd rpe rpo rpp rpr rps rpt rpu rra rrb rrc rrd rrp rrr rrs rrt rru rsa rsb rsc rsd rse rso rsp rsr rss rst rsu rta rtb rtc rtd rte rto rtp rtr rts rtt rtu rua rub ruc rud rue ruo rup rur rus rut ruu saa sab sac sad sae sao sap sar sas