c-cd cccc cccs cccu ccdc ccdr ccds ccrc ccrs ccsd ccss ccuc ccus cd-r cdcs cddr cdrs cdss crcc crcr crdc crss crud crus cscc cscd cscr cscs csdr csrc csrd csrs cssd cssr csur csus cucc cuds curd curr curs cusd cuss cusu dccc dccs dccu dcds dcsc dcss dddd ddrc ddss drrs drus druu dscc dscr dscs dsdr dsrc dsrr dssc ducs dudd duds dudu duru duur rccc rccs rcdc rcds rcrd rcsc rcsd rcss rrrr rscc rscs rsdd rsds rudd ruds rurc rurd rurs ruru russ rusu ruud sccc sccs scdc scds scr- scrc scrs scsc scsd scsr scsu scud scur sdcc sddc sdds sdrc sdrs sdsc sdss sdsu srcc srsd sscc sscs ssdc ssdd ssrc ssrs sssc ssss suc- succ sucr sucs sudd suds sur- surc surd surr surs suru sus- susd suss susu suus ucdc ucdd ucrc ucsc ucsd ucsu udds udsd urds urdu urss ursu urur urus uscc uscs usdc usds ussc ussr usss ussu usus uuuu