-ic c-- ccc cce ccf cci ccl ccs ce- cec cee cef cei cel ces cfc cfe cff cfi cfl cfs ci- cic cie cif cii cil cis cl- clc cle clf cli cll cls csc cse csf csi csl css ec- ecc ece ecf eci ecl ecs eec eee eef eel ees ef- efc efe eff efi efl efs eic eie eif eii eil eis elc ele elf eli ell els es- esc ese esf esi esl ess fcc fce fcf fci fcl fcs fec fee fef fei fel fes ffc ffe fff ffi ffl ffs fic fie fif fii fil fis flc fle flf fli fll fls fsc fse fsf fsi fsl fss i-f icc ice icf ici icl ics ie- iec iee ief iei iel ies ifc ife iff ifi ifl ifs iic iie iif iii iil iis il- ilc ile ilf ili ill ils is- isc ise isf isi isl iss lcc lce lcf lci lcl lcs lec lee lef lei lel les lfc lfe lff lfi lfl lfs lic lie lif lii lil lis llc lle llf lli lll lls lsc lse lsf lsi lsl lss scc sce scf sci scl scs se- sec see sef sei sel ses sfc sfe sff sfi sfl sfs sic sie sif sii sil sis slc sle slf sli sll sls ss- ssc sse ssf ssi ssl sss