-er -up b-p b-u bbb bbc bbd bbe bbn bbo bbp bbr bbu bcb bcc bcd bce bcn bco bcp bcr bcu bcz bdb bdc bdd bde bdo bdp bdr bdu bdz be- beb bec bed bee ben beo bep ber beu bez bnb bnc bnd bne bnn bno bnp bnr bnu bnz bob boc bod boe bon boo bop bor bou boz bpb bpc bpd bpe bpn bpo bpp bpr bpu brb brd bre brn bro brp brr bru brz bub buc bud bue bun buo bup bur buu buz bzd bze bzn bzo bzp bzr bzu bzz c-- cbb cbc cbd cbe cbn cbo cbp cbr cbu cbz ccb ccc ccd cce ccn cco ccp ccr ccu ccz cdb cdc cdd cde cdn cdo cdp cdr cdu cdz ce- ceb cec ced cee cen ceo cep cer ceu cez cn- cnb cnc cnd cne cnn cno cnp cnr cnu co- cob coc cod coe con coo cop cor cou coz cpb cpc cpd cpe cpn cpo cpp cpr cpu cpz crb crc crd cre crn cro crp crr cru crz cub cuc cud cue cun cuo cup cur cuu cuz cz- czc czd cze czo dbb dbc dbd dbe dbn dbo dbp dbr dbu dbz dcb dcc dcd dce dcn dco dcp dcr dcu ddb ddc ddd dde ddn ddo ddp ddr ddu ddz de- deb dec ded dee den deo dep der deu dez dnb dnc dnd dne dnn dno dnp dnr dnz dob doc dod doe don doo dop dor dou doz dpb dpc dpd dpe dpn dpo dpp dpr dpu dpz drb drc drd dre drn dro drp drr dru drz dub duc dud due dun duo dup dur duz dzb dzd dze dzo dzp dzr dzu ebb ebc ebd ebe ebn ebo ebp ebr ebu ec- ecb ecc ecd ece ecn eco ecr ecu ed- edb edc edd ede edn edo edp edr edu eeb eec eed eee een eeo eep eer en- enb enc end ene enn eno enp enr enu enz eo- eob eoc eod eoe eon eoo eop eor eou ep- epb epc epd epe epn epo epp epr epu epz erb erc erd ere ern ero erp err eru erz eu- eub euc eud eue eun eup eur eze ezo ezr ezz nbb nbc nbd nbe nbn nbo nbp nbr nbu ncb ncc ncd nce ncn nco ncp ncr ncu ndb ndc ndd nde ndn ndo ndp ndr ndu ne- neb nec ned nee nen neo nep ner neu nez nnb nnc nne nnn nno nnp nnu nnz no- nob noc nod noe non noo nop nor nou noz npb npc npd npe npn npo npp npr npu npz nrb nrc nrd nre nrn nro nrp nrr nru nrz nub nuc nud nue nun nuo nup nur nuu nzb nzd nze nzo nzp nzz ob- obb obc obd obe obn obo obp obr obu oc- ocb occ ocd ocn oco ocp ocr ocu ocz odb odc odd ode odn odo odp odr odu oeb oec oed oee oen oeo oep oer on- onb onc ond one onn ono onp onr onu oo- oob ooc ood oon ooo oop oor op- opb opc opd ope opn opo opp opr or- orb orc ord ore orn oro orp orr oru orz ou- ouc oud oue oun ouo oup our oze ozo ozu ozz p-p pbb pbc pbd pbe pbn pbo pbp pbr pbu pbz pcb pcc pcd pce pcn pco pcp pcr pcu pdb pdc pdd pde pdn pdo pdp pdr pdu pdz peb pec ped pee pen peo pep per peu pez pn- pnb pnc pnd pne pnn pno pnp pnr pnu pob poc pod poe pon poo pop por pou poz ppb ppc ppd ppe ppn ppo ppp ppr ppu ppz prb prc prd pre prn pro prp prr pru prz pub puc pud pue pun pup pur puu puz pzc pzp rbb rbc rbd rbe rbn rbo rbp rbr rbu rcb rcc rcd rce rcn rco rcp rcr rcu rdb rdc rdd rde rdn rdo rdp rdr rdu re- reb rec red ree ren reo rep rer reu rez rnb rnc rnd rnn rno rnp rnr rnu rnz rob roc rod roe ron roo rop ror rou roz rpb rpc rpd rpe rpn rpo rpp rpr rpu rpz rrb rrc rrd rrn rrp rrr rru rub ruc rud rue run ruo rup rur ruu ruz rzb rze rzo ubb ubc ube ubn ubo ubp ubr ubu ucb ucc ucd uce ucn uco ucp ucr ucu udb udc udd ude udn udo udp udr udu ueb uec ued uee uen uep uer un- unb unc und une unn uno unp unr unu uob uoc uod uoe uon uoo uop uor up- upb upc upd upe upn upo upp upr upu upz ur- urb urc urd ure urn uro urp urr uru urz uuc uue uun uur uuu uzb uzo uzu zbb zbc zbr zce zco zeb zec zed zee zen zeo zep zer zez znc znd zne znn zno znp zo- zob zoc zod zoe zon zoo zor zou zpc zpe zpo zpp zpr zpu zro zrp zub zuc zud zun zur zuz zzr zzz