-ic c-- ccc ccf cch cci ccs cfc cff cfh cfi cfs ch- chc chf chh chi chs ci- cic cif cih cii cis csc csf csh csi css fcc fcf fci fcs ffc fff ffh ffi ffs fhc fhf fhh fhi fhs fic fif fih fii fis fsc fsf fsh fsi fss h-i hcc hcf hch hci hcs hfc hff hfh hfi hfs hhc hhf hhh hhi hhs hic hif hih hii his hsc hsf hsh hsi hss i-f icc icf ich ici ics ifc iff ifi ifs ihc ihf ihh ihi ihs iic iif iih iii iis is- isc isf ish isi iss scc scf sch sci scs sfc sff sfh sfi sfs sh- shc shf shh shi shs sic sif sih sii sis ss- ssc ssf ssh ssi sss