-up c-- ccc ccf cco ccp ccr cct ccu cfc cff cfo cfp cfr cft cfu co- coc cof coo cop cor cot cou cpc cpf cpo cpp cpr cpt cpu crc crf cro crp crr crt cru ctc ctf cto ctp ctr ctt ctu cuc cuf cuo cup cur cut cuu fcc fcf fco fcp fcr fct fcu ffc fff ffo ffp ffr fft ffu foc fof foo fop for fot fou fpc fpo fpp fpr fpt fpu frc frf fro frp frr frt fru ftc ftf fto ftp ftr ftt ftu fuf fuo fup fur fut fuu oc- occ ocf oco ocp ocr oct ocu of- ofc off ofo ofp ofr oft ofu oo- ooc oof ooo oop oor oot op- opc opf opo opp opr opt or- orc orf oro orp orr ort oru ot- otc otf oto otp otr ott otu ou- ouc ouf ouo oup our out p-p pcc pcf pco pcp pcr pct pcu pfc pff pfo pfp pfr pft pfu poc pof poo pop por pot pou ppc ppf ppo ppp ppr ppt ppu prc prf pro prp prr prt pru pt- ptc ptf pto ptp ptr ptt ptu puc puf pup pur put puu rcc rcf rco rcp rcr rct rcu rfc rff rfo rfp rfr rft rfu roc rof roo rop ror rot rou rpc rpf rpo rpp rpr rpt rpu rrc rrf rrp rrr rrt rru rtc rtf rto rtp rtr rtt rtu ruc ruf ruo rup rur rut ruu tcc tcf tco tcp tcr tct tcu tfc tff tfo tfp tfr tft tfu to- toc tof too top tor tot tou tpc tpf tpo tpp tpr tpt tpu trc trf tro trp trr trt tru ttc ttf tto ttp ttr ttt ttu tuc tuf tuo tup tur tut tuu ucc ucf uco ucp ucr uct ucu ufc uff ufo ufp ufr uft ufu uoc uoo uop uor uot up- upc upf upo upp upr upt upu ur- urc urf uro urp urr urt uru utc utf uto utp utr utt utu uuc uur uut uuu