c-- ccc ccn cco ccp ccs cn- cnc cnn cno cnp cns cny co- coc con coo cop cos coy cpc cpn cpo cpp cps csc csn cso csp css csy cyc cyn cyo cyp cys ncc ncn nco ncp ncs nnc nnn nno nnp nns no- noc non noo nop nos noy npc npn npo npp nps nsc nsn nso nsp nss nsy nyc nyn nyo nyp nys nyy oc- occ ocn oco ocp ocs on- onc onn ono onp ons ony oo- ooc oon ooo oop oos op- opc opn opo opp ops opy os- osc osn oso osp oss oyo oys p-p pcc pcn pco pcp pcs pn- pnc pnn pno pnp pns pny poc pon poo pop pos poy ppc ppn ppo ppp pps ps- psc psn pso psp pss psy py- pyc pyn pyo pys scc scn sco scp scs snc snn sno snp sns sny soc son soo sop sos soy spc spn spo spp sps spy ss- ssc ssn sso ssp sss sy- syc syn syp sys ycc yco ycp ycs ycy ynn ynp yns yny yoc yon yoo yop yos yoy ypo yps ysc yso ysp yss ysy yyc yys yyy