-er -ic c-- ccc ccd cce ccf cci ccl ccr cdc cdd cde cdf cdi cdl cdr ce- cec ced cee cef cei cel cer cfc cfd cfe cff cfi cfl cfr ci- cic cid cie cif cii cil cir cl- clc cld cle clf cli cll clr crc crd cre crf cri crl crr dcc dcd dce dcf dci dcl dcr ddc ddd dde ddf ddi ddl ddr de- dec ded dee def dei del der dfc dfd dfe dff dfi dfl dfr di- dic did die dif dii dil dir dl- dlc dld dle dlf dli dll dlr drc drd dre dri drl drr ec- ecc ecd ece ecf eci ecl ecr ed- edc edd ede edf edi edl edr eec eed eee eef eel eer ef- efc efd efe eff efi efl efr eic eid eie eif eii eil eir elc eld ele elf eli ell elr erc erd ere erf eri erl err fcc fcd fce fcf fci fcl fcr fdc fdd fde fdf fdi fdl fdr fec fed fee fef fei fel fer ffc ffd ffe fff ffi ffl ffr fic fid fie fif fii fil fir flc fld fle flf fli fll flr frc frd fre frf fri frl frr i-d i-f icc icd ice icf ici icl icr idc idd ide idf idi idl idr ie- iec ied iee ief iei iel ier ifc ifd ife iff ifi ifl ifr iic iid iie iif iii iil iir il- ilc ild ile ilf ili ill ilr ir- irc ird ire irf iri irl irr lcc lcd lce lcf lci lcl lcr ldc ldd lde ldf ldi ldl ldr lec led lee lef lei lel ler lfc lfd lfe lff lfi lfl lfr lic lid lie lif lii lil lir llc lld lle llf lli lll llr lrc lrd lrf lri lrr rcc rcd rce rcf rci rcl rcr rdc rdd rde rdf rdi rdl rdr re- rec red ree ref rei rel rer rfc rfd rfe rff rfi rfl rfr ric rid rie rif rii ril rir rlc rld rle rlf rli rll rlr rrc rrd rrf rri rrl rrr