-up c-- ccc ccd cco ccp ccr ccs cct ccu cdc cdd cdo cdp cdr cds cdt cdu co- coc cod coo cop cor cos cot cou cpc cpd cpo cpp cpr cps cpt cpu crc crd cro crp crr crs crt cru csc csd cso csp csr css cst csu ctc ctd cto ctp ctr cts ctt ctu cuc cud cuo cup cur cus cut cuu dcc dcd dco dcp dcr dcs dct dcu ddc ddd ddo ddp ddr dds ddt ddu doc dod doo dop dor dos dot dou dpc dpd dpo dpp dpr dps dpt dpu drc drd dro drp drr drs drt dru dsc dsd dso dsp dsr dss dst dsu dtc dtd dto dtp dtr dts dtt dtu duc dud duo dup dur dus dut oc- occ ocd oco ocp ocr ocs oct ocu odc odd odo odp odr ods odt odu oo- ooc ood ooo oop oor oos oot op- opc opd opo opp opr ops opt or- orc ord oro orp orr ors ort oru os- osc osd oso osp osr oss ost osu ot- otc otd oto otp otr ots ott otu ou- ouc oud ouo oup our ous out p-p pcc pcd pco pcp pcr pcs pct pcu pdc pdd pdo pdp pdr pds pdt pdu poc pod poo pop por pos pot pou ppc ppd ppo ppp ppr pps ppt ppu prc prd pro prp prr prs prt pru ps- psc psd pso psp psr pss pst psu pt- ptc ptd pto ptp ptr pts ptt ptu puc pud pup pur pus put puu rcc rcd rco rcp rcr rcs rct rcu rdc rdd rdo rdp rdr rds rdt rdu roc rod roo rop ror ros rot rou rpc rpd rpo rpp rpr rps rpt rpu rrc rrd rrp rrr rrs rrt rru rsc rsd rso rsp rsr rss rst rsu rtc rtd rto rtp rtr rts rtt rtu ruc rud ruo rup rur rus rut ruu scc scd sco scp scr scs sct scu sdc sdd sdo sdp sdr sds sdt sdu soc sod soo sop sor sos sot sou spc spd spo spp spr sps spt spu sr- src srd sro srp srr srs srt ss- ssc ssd sso ssp ssr sss sst ssu stc std sto stp str sts stt stu suc sud suo sup sur sus sut suu tcc tcd tco tcp tcr tcs tct tcu tdc tdd tdo tdp tdr tds tdt tdu to- toc tod too top tor tos tot tou tpc tpd tpo tpp tpr tps tpt tpu trc trd tro trp trr trs trt tru tsc tsd tso tsp tsr tss tst tsu ttc ttd tto ttp ttr tts ttt ttu tuc tud tuo tup tur tus tut tuu ucc ucd uco ucp ucr ucs uct ucu udc udd udo udp udr uds udt udu uoc uod uoo uop uor uos uot up- upc upd upo upp upr ups upt upu ur- urc urd uro urp urr urs urt uru usc usd uso usp usr uss ust usu utc utd uto utp utr uts utt utu uuc uur uus uut uuu