-er -up b-p b-u bbb bbc bbd bbe bbm bbn bbo bbp bbr bbs bbu bcb bcc bcd bce bcm bcn bco bcp bcr bcs bcu bdb bdc bdd bde bdm bdo bdp bdr bds bdu be- beb bec bed bee bem ben beo bep ber bes beu bmb bmc bmd bme bmm bmn bmo bmp bmr bms bmu bnb bnc bnd bne bnn bno bnp bnr bns bnu bob boc bod boe bom bon boo bop bor bos bou bpb bpc bpd bpe bpm bpn bpo bpp bpr bps bpu brb brd bre brm brn bro brp brr brs bru bsb bsc bsd bse bsm bsn bso bsp bsr bss bsu bub buc bud bue bum bun buo bup bur bus buu c-- cbb cbc cbd cbe cbm cbn cbo cbp cbr cbs cbu ccb ccc ccd cce ccm ccn cco ccp ccr ccs ccu cdb cdc cdd cde cdm cdn cdo cdp cdr cds cdu ce- ceb cec ced cee cem cen ceo cep cer ces ceu cmb cmc cmd cme cmm cmn cmo cmp cmr cms cmu cn- cnb cnc cnd cne cnm cnn cno cnp cnr cns cnu co- cob coc cod coe com con coo cop cor cos cou cpb cpc cpd cpe cpm cpn cpo cpp cpr cps cpu crb crc crd cre crm crn cro crp crr crs cru csb csc csd cse csm csn cso csp csr css csu cub cuc cud cue cum cun cuo cup cur cus cuu dbb dbc dbd dbe dbm dbn dbo dbp dbr dbs dbu dcb dcc dcd dce dcm dcn dco dcp dcr dcs dcu ddb ddc ddd dde ddm ddn ddo ddp ddr dds ddu de- deb dec ded dee dem den deo dep der des deu dmb dmc dmd dme dmm dmn dmo dmp dmr dms dmu dnb dnc dnd dne dnm dnn dno dnp dnr dns dob doc dod doe dom don doo dop dor dos dou dpb dpc dpd dpe dpm dpn dpo dpp dpr dps dpu drb drc drd dre drm drn dro drp drr drs dru dsb dsc dsd dse dsm dsn dso dsp dsr dss dsu dub duc dud due dum dun duo dup dur dus ebb ebc ebd ebe ebm ebn ebo ebp ebr ebs ebu ec- ecb ecc ecd ece ecm ecn eco ecr ecs ecu ed- edb edc edd ede edm edn edo edp edr eds edu eeb eec eed eee eem een eeo eep eer ees em- emb emc emd eme emm emn emo emp emr ems emu en- enb enc end ene enm enn eno enp enr ens enu eo- eob eoc eod eoe eom eon eoo eop eor eos eou ep- epb epc epd epe epm epn epo epp epr eps epu erb erc erd ere erm ern ero erp err ers eru es- esb esc esd ese esm esn eso esp esr ess esu eu- eub euc eud eue eun eup eur eus m-o m-r mbb mbc mbd mbe mbm mbo mbp mbr mbs mbu mc- mcb mcc mcd mce mcm mcn mco mcp mcr mcs mcu mdb mdc mdd mde mdm mdn mdo mdp mdr mds mdu meb mec med mee mem men meo mep mer mes meu mmb mmc mmd mme mmm mmn mmo mmp mmr mms mmu mnb mnc mne mnm mnn mno mnp mnr mns mnu mob moc mod moe mom mon moo mop mor mos mou mpb mpc mpd mpe mpm mpn mpo mpp mpr mps mpu mrb mrc mrd mre mrm mrn mro mrp mrr mrs mru msb msc msd mse msm msn mso msp msr mss msu mub muc mud mue mum mun mup mur mus muu nbb nbc nbd nbe nbm nbn nbo nbp nbr nbs nbu ncb ncc ncd nce ncm ncn nco ncp ncr ncs ncu ndb ndc ndd nde ndm ndn ndo ndp ndr nds ndu ne- neb nec ned nee nem nen neo nep ner nes neu nmb nmc nmd nme nmm nmn nmo nmp nmr nms nmu nnb nnc nne nnm nnn nno nnp nns nnu no- nob noc nod noe nom non noo nop nor nos nou npb npc npd npe npm npn npo npp npr nps npu nrb nrc nrd nre nrm nrn nro nrp nrr nrs nru nsb nsc nsd nse nsm nsn nso nsp nsr nss nsu nub nuc nud nue num nun nuo nup nur nus nuu ob- obb obc obd obe obm obn obo obp obr obs obu oc- ocb occ ocd ocm ocn oco ocp ocr ocs ocu odb odc odd ode odm odn odo odp odr ods odu oeb oec oed oee oem oen oeo oep oer oes om- omb omc omd ome omm omn omo omp omr oms omu on- onb onc ond one onn ono onp onr ons onu oo- oob ooc ood oom oon ooo oop oor oos op- opb opc opd ope opm opn opo opp opr ops or- orb orc ord ore orm orn oro orp orr ors oru os- osb osc osd ose osm osn oso osp osr oss osu ou- ouc oud oue oum oun ouo oup our ous p-p pbb pbc pbd pbe pbm pbn pbo pbp pbr pbs pbu pcb pcc pcd pce pcm pcn pco pcp pcr pcs pcu pdb pdc pdd pde pdm pdn pdo pdp pdr pds pdu peb pec ped pee pem pen peo pep per pes peu pmb pmc pmd pme pmm pmn pmo pmp pmr pms pmu pn- pnb pnc pnd pne pnm pnn pno pnp pnr pns pnu pob poc pod poe pom pon poo pop por pos pou ppb ppc ppd ppe ppm ppn ppo ppp ppr pps ppu prb prc prd pre prm prn pro prp prr prs pru ps- psb psc psd pse psm psn pso psp psr pss psu pub puc pud pue pum pun pup pur pus puu rbb rbc rbd rbe rbm rbn rbo rbp rbr rbs rbu rcb rcc rcd rce rcm rcn rco rcp rcr rcs