-up c-- ccc cck ccp ccr ccs cct ccu ckc cks ckt cpc cpk cpp cpr cps cpt cpu crc crk crp crr crs crt cru csc csk csp csr css cst csu ctc ctk ctp ctr cts ctt ctu cuc cuk cup cur cus cut cuu k-t kcc kck kcp kcr kcs kct kcu kkc kkk kkp kkr kks kkt kku kpc kpk kpp kpr kps kpt kpu krc krk krp krr krs krt kru ksc ksk ksp ksr kss kst ksu ktc ktk ktp ktr kts ktt ktu kuc kuk kup kur kus kut kuu p-p pcc pck pcp pcr pcs pct pcu pkc pkp pkr pks pkt pku ppc ppk ppp ppr pps ppt ppu prc prk prp prr prs prt pru ps- psc psk psp psr pss pst psu pt- ptc ptk ptp ptr pts ptt ptu puc puk pup pur pus put puu rcc rcp rcr rcs rct rcu rkc rkk rkp rks rkt rku rpc rpk rpp rpr rps rpt rpu rrc rrk rrp rrr rrs rrt rru rsc rsk rsp rsr rss rst rsu rtc rtk rtp rtr rts rtt rtu ruc ruk rup rur rus rut ruu scc sck scp scr scs sct scu sk- skc skk skp skr sks skt sku spc spk spp spr sps spt spu sr- src srk srp srr srs srt ss- ssc ssk ssp ssr sss sst ssu stc stk stp str sts stt stu suc suk sup sur sus sut suu tcc tck tcp tcr tcs tct tcu tkc tkk tkp tkr tks tkt tpc tpk tpp tpr tps tpt tpu trc trk trp trr trs trt tru tsc tsk tsp tsr tss tst tsu ttc ttk ttp ttr tts ttt ttu tuc tuk tup tur tus tut tuu ucc uck ucp ucr ucs uct ucu ukc ukk ukp ukr uku up- upc upk upp upr ups upt upu ur- urc urk urp urr urs urt uru usc usk usp usr uss ust usu utc utk utp utr uts utt utu uuc uur uus uut uuu