-er -up c-- ccc ccd cce cco ccp ccr ccs ccu ccz cdc cdd cde cdo cdp cdr cds cdu cdz ce- cec ced cee ceo cep cer ces ceu cez co- coc cod coe coo cop cor cos cou coz cpc cpd cpe cpo cpp cpr cps cpu cpz crc crd cre cro crp crr crs cru crz csc csd cse cso csp csr css csu csz cuc cud cue cuo cup cur cus cuu cuz cz- czc czd cze czo dcc dcd dce dco dcp dcr dcs dcu ddc ddd dde ddo ddp ddr dds ddu ddz de- dec ded dee deo dep der des deu dez doc dod doe doo dop dor dos dou doz dpc dpd dpe dpo dpp dpr dps dpu dpz drc drd dre dro drp drr drs dru drz dsc dsd dse dso dsp dsr dss dsu dsz duc dud due duo dup dur dus duz dzd dze dzo dzp dzr dzs dzu ec- ecc ecd ece eco ecr ecs ecu ed- edc edd ede edo edp edr eds edu eec eed eee eeo eep eer ees eo- eoc eod eoe eoo eop eor eos eou ep- epc epd epe epo epp epr eps epu epz erc erd ere ero erp err ers eru erz es- esc esd ese eso esp esr ess esu eu- euc eud eue eup eur eus eze ezo ezr ezs ezz oc- occ ocd oco ocp ocr ocs ocu ocz odc odd ode odo odp odr ods odu oec oed oee oeo oep oer oes oo- ooc ood ooo oop oor oos op- opc opd ope opo opp opr ops or- orc ord ore oro orp orr ors oru orz os- osc osd ose oso osp osr oss osu ou- ouc oud oue ouo oup our ous oze ozo ozs ozu ozz p-p pcc pcd pce pco pcp pcr pcs pcu pdc pdd pde pdo pdp pdr pds pdu pdz pec ped pee peo pep per pes peu pez poc pod poe poo pop por pos pou poz ppc ppd ppe ppo ppp ppr pps ppu ppz prc prd pre pro prp prr prs pru prz ps- psc psd pse pso psp psr pss psu puc pud pue pup pur pus puu puz pzc pzp rcc rcd rce rco rcp rcr rcs rcu rdc rdd rde rdo rdp rdr rds rdu re- rec red ree reo rep rer res reu rez roc rod roe roo rop ror ros rou roz rpc rpd rpe rpo rpp rpr rps rpu rpz rrc rrd rrp rrr rrs rru rsc rsd rse rso rsp rsr rss rsu ruc rud rue ruo rup rur rus ruu ruz rze rzo scc scd sce sco scp scr scs scu sdc sdd sde sdo sdp sdr sds sdu sdz se- sec sed see seo sep ser ses seu sez soc sod soe soo sop sor sos sou soz spc spd spe spo spp spr sps spu spz sr- src srd sre sro srp srr srs ss- ssc ssd sse sso ssp ssr sss ssu ssz suc sud sue suo sup sur sus suu suz szd sze szp szr szu ucc ucd uce uco ucp ucr ucs ucu udc udd ude udo udp udr uds udu uec ued uee uep uer ues uoc uod uoe uoo uop uor uos up- upc upd upe upo upp upr ups upu upz ur- urc urd ure uro urp urr urs uru urz usc usd use uso usp usr uss usu usz uuc uue uur uus uuu uzo uzu zce zco zcs zds zec zed zee zeo zep zer zes zez zo- zoc zod zoe zoo zor zos zou zpc zpe zpo zpp zpr zpu zro zrp zrs zse zsu zsz zuc zud zur zus zuz zzr zzs zzz