-ic bbb bbc bbd bbe bbi bbl bbs bbt bcb bcc bcd bce bci bcl bcs bct bdb bdc bdd bde bdi bdl bds bdt be- beb bec bed bee bei bel bes bet bi- bib bic bid bie bii bil bis bit blb blc bld ble bli bll bls blt bsb bsc bsd bse bsi bsl bss bst btb btc btd bte bti btl bts btt c-- cbb cbc cbd cbe cbi cbl cbs cbt ccb ccc ccd cce cci ccl ccs cct cdb cdc cdd cde cdi cdl cds cdt ce- ceb cec ced cee cei cel ces cet ci- cib cic cid cie cii cil cis cit cl- clb clc cld cle cli cll cls clt csb csc csd cse csi csl css cst ctb ctc ctd cte cti ctl cts ctt dbb dbc dbd dbe dbi dbl dbs dbt dcb dcc dcd dce dci dcl dcs dct ddb ddc ddd dde ddi ddl dds ddt de- deb dec ded dee dei del des det di- dib dic did die dii dil dis dit dl- dlb dlc dld dle dli dll dls dlt dsb dsc dsd dse dsi dsl dss dst dtb dtc dtd dte dti dtl dts dtt ebb ebc ebd ebe ebi ebl ebs ebt ec- ecb ecc ecd ece eci ecl ecs ect ed- edb edc edd ede edi edl eds edt eeb eec eed eee eel ees eet eib eic eid eie eii eil eis eit elb elc eld ele eli ell els elt es- esb esc esd ese esi esl ess est etb etc etd ete eti etl ets ett i-d ibb ibc ibd ibe ibi ibl ibs ibt icb icc icd ice ici icl ics ict idb idc idd ide idi idl ids idt ie- iec ied iee iei iel ies iet iib iic iid iie iii iil iis iit il- ilb ilc ild ile ili ill ils ilt is- isb isc isd ise isi isl iss ist itb itc itd ite iti itl its itt lbb lbc lbd lbe lbi lbl lbs lbt lcb lcc lcd lce lci lcl lcs lct ldb ldc ldd lde ldi ldl lds ldt leb lec led lee lei lel les let lib lic lid lie lii lil lis lit llb llc lld lle lli lll lls llt lsb lsc lsd lse lsi lsl lss lst ltb ltc ltd lte lti ltl lts ltt sbb sbc sbd sbe sbi sbl sbs sbt scb scc scd sce sci scl scs sct sdb sdc sdd sde sdi sdl sds sdt se- seb sec sed see sei sel ses set sib sic sid sie sii sil sis sit slb slc sld sle sli sll sls slt ss- ssb ssc ssd sse ssi ssl sss sst stb stc std ste sti stl sts stt tbb tbc tbd tbe tbi tbl tbs tbt tcb tcc tcd tce tci tcl tcs tct tdb tdc tdd tde tdi tdl tds tdt te- teb tec ted tee tei tel tes tet tib tic tid tie tii til tis tit tlc tld tle tli tll tls tlt tsb tsc tsd tse tsi tsl tss tst ttb ttc ttd tte tti ttl tts ttt