-ic bbb bbc bbd bbe bbi bbl bbs bcb bcc bcd bce bci bcl bcs bdb bdc bdd bde bdi bdl bds be- beb bec bed bee bei bel bes bi- bib bic bid bie bii bil bis blb blc bld ble bli bll bls bsb bsc bsd bse bsi bsl bss c-- cbb cbc cbd cbe cbi cbl cbs ccb ccc ccd cce cci ccl ccs cdb cdc cdd cde cdi cdl cds ce- ceb cec ced cee cei cel ces ci- cib cic cid cie cii cil cis cl- clb clc cld cle cli cll cls csb csc csd cse csi csl css dbb dbc dbd dbe dbi dbl dbs dcb dcc dcd dce dci dcl dcs ddb ddc ddd dde ddi ddl dds de- deb dec ded dee dei del des di- dib dic did die dii dil dis dl- dlb dlc dld dle dli dll dls dsb dsc dsd dse dsi dsl dss ebb ebc ebd ebe ebi ebl ebs ec- ecb ecc ecd ece eci ecl ecs ed- edb edc edd ede edi edl eds eeb eec eed eee eel ees eib eic eid eie eii eil eis elb elc eld ele eli ell els es- esb esc esd ese esi esl ess i-d ibb ibc ibd ibe ibi ibl ibs icb icc icd ice ici icl ics idb idc idd ide idi idl ids ie- iec ied iee iei iel ies iib iic iid iie iii iil iis il- ilb ilc ild ile ili ill ils is- isb isc isd ise isi isl iss lbb lbc lbd lbe lbi lbl lbs lcb lcc lcd lce lci lcl lcs ldb ldc ldd lde ldi ldl lds leb lec led lee lei lel les lib lic lid lie lii lil lis llb llc lld lle lli lll lls lsb lsc lsd lse lsi lsl lss sbb sbc sbd sbe sbi sbl sbs scb scc scd sce sci scl scs sdb sdc sdd sde sdi sdl sds se- seb sec sed see sei sel ses sib sic sid sie sii sil sis slb slc sld sle sli sll sls ss- ssb ssc ssd sse ssi ssl sss