-er -up a-a a-b a-c aaa aab aac aad aae aan aao aap aar aas aau ab- aba abb abc abd abe abn abo abp abr abs abu ac- aca acb acc acd ace acn aco acp acr acs acu ad- ada adb adc add ade adn ado adp adr ads adu aea aeb aec aed aee aen aeo aep aer aes aeu an- ana anb anc and ane ann ano anp anr ans anu aoa aob aoc aod aoe aon aoo aop aor aos aou ap- apa apb apc apd ape apn apo app apr aps apu ar- ara arb arc ard are arn aro arp arr ars aru as- asa asb asc asd ase asn aso asp asr ass asu au- aua aub auc aud aue aun auo aup aur aus b-p b-u baa bab bac bad bae ban bao bap bar bas bau bba bbb bbc bbd bbe bbn bbo bbp bbr bbs bbu bca bcb bcc bcd bce bcn bco bcp bcr bcs bcu bda bdb bdc bdd bde bdo bdp bdr bds bdu be- bea beb bec bed bee ben beo bep ber bes beu bna bnb bnc bnd bne bnn bno bnp bnr bns bnu boa bob boc bod boe bon boo bop bor bos bou bpa bpb bpc bpd bpe bpn bpo bpp bpr bps bpu bra brb brd bre brn bro brp brr brs bru bsa bsb bsc bsd bse bsn bso bsp bsr bss bsu bua bub buc bud bue bun buo bup bur bus buu c-- caa cab cac cad cae can cao cap car cas cau cba cbb cbc cbd cbe cbn cbo cbp cbr cbs cbu cca ccb ccc ccd cce ccn cco ccp ccr ccs ccu cda cdb cdc cdd cde cdn cdo cdp cdr cds cdu ce- cea ceb cec ced cee cen ceo cep cer ces ceu cn- cna cnb cnc cnd cne cnn cno cnp cnr cns cnu co- coa cob coc cod coe con coo cop cor cos cou cpa cpb cpc cpd cpe cpn cpo cpp cpr cps cpu cra crb crc crd cre crn cro crp crr crs cru csa csb csc csd cse csn cso csp csr css csu cua cub cuc cud cue cun cuo cup cur cus cuu daa dab dac dad dae dan dao dap dar das dau dba dbb dbc dbd dbe dbn dbo dbp dbr dbs dbu dca dcb dcc dcd dce dcn dco dcp dcr dcs dcu dda ddb ddc ddd dde ddn ddo ddp ddr dds ddu de- dea deb dec ded dee den deo dep der des deu dna dnb dnc dnd dne dnn dno dnp dnr dns doa dob doc dod doe don doo dop dor dos dou dpa dpb dpc dpd dpe dpn dpo dpp dpr dps dpu dra drb drc drd dre drn dro drp drr drs dru dsa dsb dsc dsd dse dsn dso dsp dsr dss dsu dua dub duc dud due dun duo dup dur dus eaa eab eac ead eae ean eao eap ear eas eau eba ebb ebc ebd ebe ebn ebo ebp ebr ebs ebu ec- eca ecb ecc ecd ece ecn eco ecr ecs ecu ed- eda edb edc edd ede edn edo edp edr eds edu eea eeb eec eed eee een eeo eep eer ees en- ena enb enc end ene enn eno enp enr ens enu eo- eoa eob eoc eod eoe eon eoo eop eor eos eou ep- epa epb epc epd epe epn epo epp epr eps epu era erb erc erd ere ern ero erp err ers eru es- esa esb esc esd ese esn eso esp esr ess esu eu- eua eub euc eud eue eun eup eur eus naa nab nac nad nae nan nao nap nar nas nau nba nbb nbc nbd nbe nbn nbo nbp nbr nbs nbu nca ncb ncc ncd nce ncn nco ncp ncr ncs ncu nda ndb ndc ndd nde ndn ndo ndp ndr nds ndu ne- nea neb nec ned nee nen neo nep ner nes neu nna nnb nnc nne nnn nno nnp nns nnu no- noa nob noc nod noe non noo nop nor nos nou npa npb npc npd npe npn npo npp npr nps npu nra nrb nrc nrd nre nrn nro nrp nrr nrs nru nsa nsb nsc nsd nse nsn nso nsp nsr nss nsu nua nub nuc nud nue nun nuo nup nur nus nuu oaa oab oac oad oae oan oao oap oar oas oau ob- oba obb obc obd obe obn obo obp obr obs obu oc- oca ocb occ ocd ocn oco ocp ocr ocs ocu oda odb odc odd ode odn odo odp odr ods odu oea oeb oec oed oee oen oeo oep oer oes on- ona onb onc ond one onn ono onp onr ons onu oo- ooa oob ooc ood oon ooo oop oor oos op- opa opb opc opd ope opn opo opp opr ops or- ora orb orc ord ore orn oro orp orr ors oru os- osa osb osc osd ose osn oso osp osr oss osu ou- oua ouc oud oue oun ouo oup our ous p-p paa pab pac pad pae pan pao pap par pas pau pba pbb pbc pbd pbe pbn pbo pbp pbr pbs pbu pca pcb pcc pcd pce pcn pco pcp pcr pcs pcu pda pdb pdc pdd pde pdn pdo pdp pdr pds pdu pea peb pec ped pee pen peo pep per pes peu pn- pna pnb pnc pnd pne pnn pno pnp pnr pns pnu poa pob poc pod poe pon poo pop por pos pou ppa ppb ppc ppd ppe ppn ppo ppp ppr pps ppu pra prb prc prd pre prn pro prp prr prs pru ps- psa psb psc psd pse psn pso psp psr pss psu pua pub puc pud pue pun pup pur pus puu ra- raa rab rac rad rae ran rao rap rar