-up c-- ccc ccd cce ccn cco ccp ccs ccu cdc cdd cde cdn cdo cdp cds cdu ce- cec ced cee cen ceo cep ces ceu cn- cnc cnd cne cnn cno cnp cns cnu co- coc cod coe con coo cop cos cou cpc cpd cpe cpn cpo cpp cps cpu csc csd cse csn cso csp css csu cuc cud cue cun cuo cup cus cuu dcc dcd dce dcn dco dcp dcs dcu ddc ddd dde ddn ddo ddp dds ddu de- dec ded dee den deo dep des deu dnc dnd dne dnn dno dnp dns doc dod doe don doo dop dos dou dpc dpd dpe dpn dpo dpp dps dpu dsc dsd dse dsn dso dsp dss dsu duc dud due dun duo dup dus ec- ecc ecd ece ecn eco ecs ecu ed- edc edd ede edn edo edp eds edu eec eed eee een eeo eep ees en- enc end ene enn eno enp ens enu eo- eoc eod eoe eon eoo eop eos eou ep- epc epd epe epn epo epp eps epu es- esc esd ese esn eso esp ess esu eu- euc eud eue eun eup eus ncc ncd nce ncn nco ncp ncs ncu ndc ndd nde ndn ndo ndp nds ndu ne- nec ned nee nen neo nep nes neu nnc nne nnn nno nnp nns nnu no- noc nod noe non noo nop nos nou npc npd npe npn npo npp nps npu nsc nsd nse nsn nso nsp nss nsu nuc nud nue nun nuo nup nus nuu oc- occ ocd ocn oco ocp ocs ocu odc odd ode odn odo odp ods odu oec oed oee oen oeo oep oes on- onc ond one onn ono onp ons onu oo- ooc ood oon ooo oop oos op- opc opd ope opn opo opp ops os- osc osd ose osn oso osp oss osu ou- ouc oud oue oun ouo oup ous p-p pcc pcd pce pcn pco pcp pcs pcu pdc pdd pde pdn pdo pdp pds pdu pec ped pee pen peo pep pes peu pn- pnc pnd pne pnn pno pnp pns pnu poc pod poe pon poo pop pos pou ppc ppd ppe ppn ppo ppp pps ppu ps- psc psd pse psn pso psp pss psu puc pud pue pun pup pus puu scc scd sce scn sco scp scs scu sdc sdd sde sdn sdo sdp sds sdu se- sec sed see sen seo sep ses seu snc snd sne snn sno snp sns snu soc sod soe son soo sop sos sou spc spd spe spn spo spp sps spu ss- ssc ssd sse ssn sso ssp sss ssu suc sud sue sun suo sup sus suu ucc ucd uce ucn uco ucp ucs ucu udc udd ude udn udo udp uds udu uec ued uee uen uep ues un- unc und une unn uno unp uns unu uoc uod uoe uon uoo uop uos up- upc upd upe upn upo upp ups upu usc usd use usn uso usp uss usu uuc uue uun uus uuu