-ic c-- ccc cci cco ccp ccs ci- cic cii cio cip cis co- coc coi coo cop cos cpc cpi cpo cpp cps csc csi cso csp css icc ici ico icp ics iic iii iio iip iis io- ioc ioi ioo iop ios ipc ipi ipo ipp ips is- isc isi iso isp iss o-i oc- occ oci oco ocp ocs oic oii oio oip ois oo- ooc ooi ooo oop oos op- opc opi opo opp ops os- osc osi oso osp oss p-p pcc pci pco pcp pcs pic pii pio pip pis poc poi poo pop pos ppc ppi ppo ppp pps ps- psc psi pso psp pss scc sci sco scp scs sic sii sio sip sis soc soi soo sop sos spc spi spo spp sps ss- ssc ssi sso ssp sss