c-- ccc cch cco ccp ccs ccz ch- chc chh cho chp chs chy chz co- coc coh coo cop cos coy coz cpc cph cpo cpp cps cpz csc csh cso csp css csy csz cyc cyo cyp cys cz- czc czo hcc hch hco hcp hcs hcy hhc hhh hho hhp hhs hhy hhz hoc hoh hoo hop hos hoy hpc hph hpo hpp hps hpy hsc hsh hsp hss hsy hsz hy- hyc hyh hyo hyp hys hyy hzo hzp hzs hzy oc- occ och oco ocp ocs ocz ohc ohh oho ohp ohs oo- ooc ooh ooo oop oos op- opc oph opo opp ops opy os- osc osh oso osp oss oyo oys ozo ozs ozz p-p pcc pch pco pcp pcs phc pho php phs phy poc poh poo pop pos poy poz ppc pph ppo ppp pps ppz ps- psc psh pso psp pss psy py- pyc pyo pys pzc pzp scc sch sco scp scs sh- shc shh sho shp shs shy soc soh soo sop sos soy soz spc sph spo spp sps spy spz ss- ssc ssh sso ssp sss ssz sy- syc syh syp sys szp ycc ych yco ycp ycs ycy yhc yhs yoc yoo yop yos yoy ypo yps ysc yso ysp yss ysy ysz yyc yys yyy yyz yzy zco zcs zhc zho zhs zo- zoc zoo zos zpc zpo zpp zsh zsz zzs zzy zzz