-ic bbb bbc bbd bbe bbf bbi bbl bbt bcb bcc bcd bce bcf bci bcl bct bdb bdc bdd bde bdf bdi bdl bdt be- beb bec bed bee bef bei bel bet bfb bfc bfd bfe bff bfi bfl bft bi- bib bic bid bie bif bii bil bit blb blc bld ble blf bli bll blt btb btc btd bte btf bti btl btt c-- cbb cbc cbd cbe cbf cbi cbl cbt ccb ccc ccd cce ccf cci ccl cct cdb cdc cdd cde cdf cdi cdl cdt ce- ceb cec ced cee cef cei cel cet cfb cfc cfd cfe cff cfi cfl cft ci- cib cic cid cie cif cii cil cit cl- clb clc cld cle clf cli cll clt ctb ctc ctd cte ctf cti ctl ctt dbb dbc dbd dbe dbf dbi dbl dbt dcb dcc dcd dce dcf dci dcl dct ddb ddc ddd dde ddf ddi ddl ddt de- deb dec ded dee def dei del det dfb dfc dfd dfe dff dfi dfl dft di- dib dic did die dif dii dil dit dl- dlb dlc dld dle dlf dli dll dlt dtb dtc dtd dte dtf dti dtl dtt ebb ebc ebd ebe ebf ebi ebl ebt ec- ecb ecc ecd ece ecf eci ecl ect ed- edb edc edd ede edf edi edl edt eeb eec eed eee eef eel eet ef- efb efc efd efe eff efi efl eft eib eic eid eie eif eii eil eit elb elc eld ele elf eli ell elt etb etc etd ete etf eti etl ett fbb fbc fbd fbe fbf fbi fbl fbt fcb fcc fcd fce fcf fci fcl fct fdb fdc fdd fde fdf fdi fdl fdt feb fec fed fee fef fei fel fet ffc ffd ffe fff ffi ffl fft fib fic fid fie fif fii fil fit flb flc fld fle flf fli fll flt ftb ftc ftd fte ftf fti ftl ftt i-d i-f ibb ibc ibd ibe ibf ibi ibl ibt icb icc icd ice icf ici icl ict idb idc idd ide idf idi idl idt ie- iec ied iee ief iei iel iet ifb ifc ifd ife iff ifi ifl ift iib iic iid iie iif iii iil iit il- ilb ilc ild ile ilf ili ill ilt itb itc itd ite itf iti itl itt lbb lbc lbd lbe lbf lbi lbl lbt lcb lcc lcd lce lcf lci lcl lct ldb ldc ldd lde ldf ldi ldl ldt leb lec led lee lef lei lel let lfb lfc lfd lfe lff lfi lfl lft lib lic lid lie lif lii lil lit llb llc lld lle llf lli lll llt ltb ltc ltd lte ltf lti ltl ltt tbb tbc tbd tbe tbf tbi tbl tbt tcb tcc tcd tce tcf tci tcl tct tdb tdc tdd tde tdf tdi tdl tdt te- teb tec ted tee tef tei tel tet tfb tfc tfd tfe tff tfi tfl tft tib tic tid tie tif tii til tit tlc tld tle tlf tli tll tlt ttb ttc ttd tte ttf tti ttl ttt