-up c-- ccc cco ccp ccs ccu co- coc coo cop cos cou coy cpc cpo cpp cps cpu csc cso csp css csu csy cuc cuo cup cus cuu cuy cyc cyo cyp cys oc- occ oco ocp ocs ocu oo- ooc ooo oop oos op- opc opo opp ops opy os- osc oso osp oss osu ou- ouc ouo oup ous oyo oys p-p pcc pco pcp pcs pcu poc poo pop pos pou poy ppc ppo ppp pps ppu ps- psc pso psp pss psu psy puc pup pus puu puy py- pyc pyo pys pyu scc sco scp scs scu soc soo sop sos sou soy spc spo spp sps spu spy ss- ssc sso ssp sss ssu suc suo sup sus suu suy sy- syc syp sys syu ucc uco ucp ucs ucu uoc uoo uop uos up- upc upo upp ups upu usc uso usp uss usu uuc uus uuu uyc uyo uys uyu ycc yco ycp ycs ycu ycy yoc yoo yop yos you yoy ypo yps ypu ysc yso ysp yss ysu ysy yuo yup yus yuu yuy yyc yys yyu yyy