-up c-- ccc ccd cce cco ccp ccs ccu cdc cdd cde cdo cdp cds cdu ce- cec ced cee ceo cep ces ceu co- coc cod coe coo cop cos cou cpc cpd cpe cpo cpp cps cpu csc csd cse cso csp css csu cuc cud cue cuo cup cus cuu dcc dcd dce dco dcp dcs dcu ddc ddd dde ddo ddp dds ddu de- dec ded dee deo dep des deu doc dod doe doo dop dos dou dpc dpd dpe dpo dpp dps dpu dsc dsd dse dso dsp dss dsu duc dud due duo dup dus ec- ecc ecd ece eco ecs ecu ed- edc edd ede edo edp eds edu eec eed eee eeo eep ees eo- eoc eod eoe eoo eop eos eou ep- epc epd epe epo epp eps epu es- esc esd ese eso esp ess esu eu- euc eud eue eup eus oc- occ ocd oco ocp ocs ocu odc odd ode odo odp ods odu oec oed oee oeo oep oes oo- ooc ood ooo oop oos op- opc opd ope opo opp ops os- osc osd ose oso osp oss osu ou- ouc oud oue ouo oup ous p-p pcc pcd pce pco pcp pcs pcu pdc pdd pde pdo pdp pds pdu pec ped pee peo pep pes peu poc pod poe poo pop pos pou ppc ppd ppe ppo ppp pps ppu ps- psc psd pse pso psp pss psu puc pud pue pup pus puu scc scd sce sco scp scs scu sdc sdd sde sdo sdp sds sdu se- sec sed see seo sep ses seu soc sod soe soo sop sos sou spc spd spe spo spp sps spu ss- ssc ssd sse sso ssp sss ssu suc sud sue suo sup sus suu ucc ucd uce uco ucp ucs ucu udc udd ude udo udp uds udu uec ued uee uep ues uoc uod uoe uoo uop uos up- upc upd upe upo upp ups upu usc usd use uso usp uss usu uuc uue uus uuu