-ic c-- ccc ccf cci cco ccp ccs cfc cff cfi cfo cfp cfs ci- cic cif cii cio cip cis co- coc cof coi coo cop cos cpc cpf cpi cpo cpp cps csc csf csi cso csp css fcc fcf fci fco fcp fcs ffc fff ffi ffo ffp ffs fic fif fii fip fis foc fof foi foo fop fos fpc fpi fpo fpp fps fsc fsf fsi fso fsp fss i-f icc icf ici ico icp ics ifc iff ifi ifo ifp ifs iic iif iii iio iip iis io- ioc iof ioi ioo iop ios ipc ipf ipi ipo ipp ips is- isc isf isi iso isp iss o-i oc- occ ocf oci oco ocp ocs of- ofc off ofi ofo ofp ofs oic oif oii oio oip ois oo- ooc oof ooi ooo oop oos op- opc opf opi opo opp ops os- osc osf osi oso osp oss p-p pcc pcf pci pco pcp pcs pfc pff pfi pfo pfp pfs pic pif pii pio pip pis poc pof poi poo pop pos ppc ppf ppi ppo ppp pps ps- psc psf psi pso psp pss scc scf sci sco scp scs sfc sff sfi sfo sfp sfs sic sif sii sio sip sis soc sof soi soo sop sos spc spf spi spo spp sps ss- ssc ssf ssi sso ssp sss