-up c-- ccc ccm ccp ccr ccs ccu cmc cmm cmp cmr cms cmu cpc cpm cpp cpr cps cpu crc crm crp crr crs cru csc csm csp csr css csu cuc cum cup cur cus cuu m-r mc- mcc mcm mcp mcr mcs mcu mmc mmm mmp mmr mms mmu mpc mpm mpp mpr mps mpu mrc mrm mrp mrr mrs mru msc msm msp msr mss msu muc mum mup mur mus muu p-p pcc pcm pcp pcr pcs pcu pmc pmm pmp pmr pms pmu ppc ppm ppp ppr pps ppu prc prm prp prr prs pru ps- psc psm psp psr pss psu puc pum pup pur pus puu rcc rcm rcp rcr rcs rcu rmc rmm rmp rmr rms rpc rpm rpp rpr rps rpu rrc rrm rrp rrr rrs rru rsc rsm rsp rsr rss rsu ruc rum rup rur rus ruu scc scm scp scr scs scu smc smm smp smr sms smu spc spm spp spr sps spu sr- src srm srp srr srs ss- ssc ssm ssp ssr sss ssu suc sum sup sur sus suu ucc ucm ucp ucr ucs ucu um- umc umm ump umr ums umu up- upc upm upp upr ups upu ur- urc urm urp urr urs uru usc usm usp usr uss usu uuc uum uur uus uuu