-er -up b-p b-u bbb bbc bbe bbm bbn bbo bbp bbr bbs bbu bcb bcc bce bcm bcn bco bcp bcr bcs bcu be- beb bec bee bem ben beo bep ber bes beu bmb bmc bme bmm bmn bmo bmp bmr bms bmu bnb bnc bne bnn bno bnp bnr bns bnu bob boc boe bom bon boo bop bor bos bou bpb bpc bpe bpm bpn bpo bpp bpr bps bpu brb bre brm brn bro brp brr brs bru bsb bsc bse bsm bsn bso bsp bsr bss bsu bub buc bue bum bun buo bup bur bus buu c-- cbb cbc cbe cbm cbn cbo cbp cbr cbs cbu ccb ccc cce ccm ccn cco ccp ccr ccs ccu ce- ceb cec cee cem cen ceo cep cer ces ceu cmb cmc cme cmm cmn cmo cmp cmr cms cmu cn- cnb cnc cne cnm cnn cno cnp cnr cns cnu co- cob coc coe com con coo cop cor cos cou cpb cpc cpe cpm cpn cpo cpp cpr cps cpu crb crc cre crm crn cro crp crr crs cru csb csc cse csm csn cso csp csr css csu cub cuc cue cum cun cuo cup cur cus cuu ebb ebc ebe ebm ebn ebo ebp ebr ebs ebu ec- ecb ecc ece ecm ecn eco ecr ecs ecu eeb eec eee eem een eeo eep eer ees em- emb emc eme emm emn emo emp emr ems emu en- enb enc ene enm enn eno enp enr ens enu eo- eob eoc eoe eom eon eoo eop eor eos eou ep- epb epc epe epm epn epo epp epr eps epu erb erc ere erm ern ero erp err ers eru es- esb esc ese esm esn eso esp esr ess esu eu- eub euc eue eun eup eur eus m-o m-r mbb mbc mbe mbm mbo mbp mbr mbs mbu mc- mcb mcc mce mcm mcn mco mcp mcr mcs mcu meb mec mee mem men meo mep mer mes meu mmb mmc mme mmm mmn mmo mmp mmr mms mmu mnb mnc mne mnm mnn mno mnp mnr mns mnu mob moc moe mom mon moo mop mor mos mou mpb mpc mpe mpm mpn mpo mpp mpr mps mpu mrb mrc mre mrm mrn mro mrp mrr mrs mru msb msc mse msm msn mso msp msr mss msu mub muc mue mum mun mup mur mus muu nbb nbc nbe nbm nbn nbo nbp nbr nbs nbu ncb ncc nce ncm ncn nco ncp ncr ncs ncu ne- neb nec nee nem nen neo nep ner nes neu nmb nmc nme nmm nmn nmo nmp nmr nms nmu nnb nnc nne nnm nnn nno nnp nns nnu no- nob noc noe nom non noo nop nor nos nou npb npc npe npm npn npo npp npr nps npu nrb nrc nre nrm nrn nro nrp nrr nrs nru nsb nsc nse nsm nsn nso nsp nsr nss nsu nub nuc nue num nun nuo nup nur nus nuu ob- obb obc obe obm obn obo obp obr obs obu oc- ocb occ ocm ocn oco ocp ocr ocs ocu oeb oec oee oem oen oeo oep oer oes om- omb omc ome omm omn omo omp omr oms omu on- onb onc one onn ono onp onr ons onu oo- oob ooc oom oon ooo oop oor oos op- opb opc ope opm opn opo opp opr ops or- orb orc ore orm orn oro orp orr ors oru os- osb osc ose osm osn oso osp osr oss osu ou- ouc oue oum oun ouo oup our ous p-p pbb pbc pbe pbm pbn pbo pbp pbr pbs pbu pcb pcc pce pcm pcn pco pcp pcr pcs pcu peb pec pee pem pen peo pep per pes peu pmb pmc pme pmm pmn pmo pmp pmr pms pmu pn- pnb pnc pne pnm pnn pno pnp pnr pns pnu pob poc poe pom pon poo pop por pos pou ppb ppc ppe ppm ppn ppo ppp ppr pps ppu prb prc pre prm prn pro prp prr prs pru ps- psb psc pse psm psn pso psp psr pss psu pub puc pue pum pun pup pur pus puu rbb rbc rbe rbm rbn rbo rbp rbr rbs rbu rcb rcc rce rcm rcn rco rcp rcr rcs rcu re- reb rec ree rem ren reo rep rer res reu rmb rmc rme rmm rmn rmo rmp rmr rms rnb rnc rnm rnn rno rnp rnr rns rnu rob roc roe rom ron roo rop ror ros rou rpb rpc rpe rpm rpn rpo rpp rpr rps rpu rrb rrc rrm rrn rrp rrr rrs rru rsb rsc rse rsm rsn rso rsp rsr rss rsu rub ruc rue rum run ruo rup rur rus ruu sbb sbc sbe sbm sbn sbo sbp sbr sbs sbu scb scc sce scm scn sco scp scr scs scu se- seb sec see sem sen seo sep ser ses seu smb smc sme smm smn smo smp smr sms smu snb snc sne snm snn sno snp snr sns snu sob soc soe som son soo sop sor sos sou spb spc spe spm spn spo spp spr sps spu sr- srb src sre srm srn sro srp srr srs ss- ssb ssc sse ssm ssn sso ssp ssr sss ssu sub suc sue sum sun suo sup sur sus suu ubb ubc ube ubn ubo ubp ubr ubs ubu ucb ucc uce ucm ucn uco ucp ucr ucs ucu ueb uec uee uem uen uep uer ues um- umb umc ume umm umn umo ump umr ums umu un- unb unc une unm unn uno unp unr uns unu uob uoc uoe uom uon uoo uop uor uos up- upb upc upe upm upn upo upp upr ups upu ur- urb urc ure urm urn uro urp urr urs uru usb usc use usm usn uso usp