c-- ccc cco ccp ccs ccv co- coc coo cop cos cov cpc cpo cpp cps cpv csc cso csp css csv cvc cvo cvp cvs cvv oc- occ oco ocp ocs ocv oo- ooc ooo oop oos oov op- opc opo opp ops opv os- osc oso osp oss osv ov- ovc ovo ovp ovs ovv p-p pcc pco pcp pcs pcv poc poo pop pos pov ppc ppo ppp pps ppv ps- psc pso psp pss psv pvc pvo pvp pvs pvv scc sco scp scs scv soc soo sop sos sov spc spo spp sps spv ss- ssc sso ssp sss ssv svc svo svp svs svv vcc vco vcp vcs voc voo vop vos vov vpc vpo vpp vps vsc vso vsp vss vsv vvc vvo vvs vvv