-er -ic bbb bbc bbd bbe bbi bbl bbr bcb bcc bcd bce bci bcl bcr bdb bdc bdd bde bdi bdl bdr be- beb bec bed bee bei bel ber bi- bib bic bid bie bii bil bir blb blc bld ble bli bll blr brb brd bre bri brl brr c-- cbb cbc cbd cbe cbi cbl cbr ccb ccc ccd cce cci ccl ccr cdb cdc cdd cde cdi cdl cdr ce- ceb cec ced cee cei cel cer ci- cib cic cid cie cii cil cir cl- clb clc cld cle cli cll clr crb crc crd cre cri crl crr dbb dbc dbd dbe dbi dbl dbr dcb dcc dcd dce dci dcl dcr ddb ddc ddd dde ddi ddl ddr de- deb dec ded dee dei del der di- dib dic did die dii dil dir dl- dlb dlc dld dle dli dll dlr drb drc drd dre dri drl drr ebb ebc ebd ebe ebi ebl ebr ec- ecb ecc ecd ece eci ecl ecr ed- edb edc edd ede edi edl edr eeb eec eed eee eel eer eib eic eid eie eii eil eir elb elc eld ele eli ell elr erb erc erd ere eri erl err i-d ibb ibc ibd ibe ibi ibl ibr icb icc icd ice ici icl icr idb idc idd ide idi idl idr ie- iec ied iee iei iel ier iib iic iid iie iii iil iir il- ilb ilc ild ile ili ill ilr ir- irb irc ird ire iri irl irr lbb lbc lbd lbe lbi lbl lbr lcb lcc lcd lce lci lcl lcr ldb ldc ldd lde ldi ldl ldr leb lec led lee lei lel ler lib lic lid lie lii lil lir llb llc lld lle lli lll llr lrb lrc lrd lri lrr rbb rbc rbd rbe rbi rbl rbr rcb rcc rcd rce rci rcl rcr rdb rdc rdd rde rdi rdl rdr re- reb rec red ree rei rel rer rib ric rid rie rii ril rir rlc rld rle rli rll rlr rrb rrc rrd rri rrl rrr