-ic -ol bbb bbc bbd bbe bbi bbl bbo bbt bcb bcc bcd bce bci bcl bco bct bdb bdc bdd bde bdi bdl bdo bdt be- beb bec bed bee bei bel beo bet bi- bib bic bid bie bii bil bio bit blb blc bld ble bli bll blo blt bob boc bod boe boi bol boo bot btb btc btd bte bti btl bto btt c-- cbb cbc cbd cbe cbi cbl cbo cbt ccb ccc ccd cce cci ccl cco cct cdb cdc cdd cde cdi cdl cdo cdt ce- ceb cec ced cee cei cel ceo cet ci- cib cic cid cie cii cil cio cit cl- clb clc cld cle cli cll clo clt co- cob coc cod coe coi col coo cot ctb ctc ctd cte cti ctl cto ctt dbb dbc dbd dbe dbi dbl dbo dbt dcb dcc dcd dce dci dcl dco dct ddb ddc ddd dde ddi ddl ddo ddt de- deb dec ded dee dei del deo det di- dib dic did die dii dil dio dit dl- dlb dlc dld dle dli dll dlo dlt dob doc dod doe doi dol doo dot dtb dtc dtd dte dti dtl dto dtt ebb ebc ebd ebe ebi ebl ebo ebt ec- ecb ecc ecd ece eci ecl eco ect ed- edb edc edd ede edi edl edo edt eeb eec eed eee eel eeo eet eib eic eid eie eii eil eio eit elb elc eld ele eli ell elo elt eo- eob eoc eod eoe eoi eol eoo eot etb etc etd ete eti etl eto ett i-d ibb ibc ibd ibe ibi ibl ibo ibt icb icc icd ice ici icl ico ict idb idc idd ide idi idl ido idt ie- iec ied iee iei iel iet iib iic iid iie iii iil iio iit il- ilb ilc ild ile ili ill ilo ilt io- iob ioc iod ioe ioi iol ioo iot itb itc itd ite iti itl ito itt lbb lbc lbd lbe lbi lbl lbo lbt lcb lcc lcd lce lci lcl lco lct ldb ldc ldd lde ldi ldl ldo ldt leb lec led lee lei lel leo let lib lic lid lie lii lil lio lit llb llc lld lle lli lll llo llt lob loc lod loe loi lol loo lot ltb ltc ltd lte lti ltl lto ltt o-i ob- obb obc obd obe obi obl obo obt oc- ocb occ ocd oci ocl oco oct odb odc odd ode odi odl odo odt oeb oec oed oee oei oel oeo oet oib oic oid oie oii oil oio oit olb olc old ole oli oll olo olt oo- oob ooc ood ooi ool ooo oot ot- otb otc otd ote oti otl oto ott tbb tbc tbd tbe tbi tbl tbo tbt tcb tcc tcd tce tci tcl tco tct tdb tdc tdd tde tdi tdl tdo tdt te- teb tec ted tee tei tel teo tet tib tic tid tie tii til tio tit tlc tld tle tli tll tlo tlt to- tob toc tod toe toi tol too tot ttb ttc ttd tte tti ttl tto ttt