-ic -ol bbb bbc bbe bbi bbl bbo bbx bcb bcc bce bci bcl bco bcx be- beb bec bee bei bel beo bex bi- bib bic bie bii bil bio bix blb blc ble bli bll blo blx bob boc boe boi bol boo box bxb bxi bxl bxo bxx c-- cbb cbc cbe cbi cbl cbo cbx ccb ccc cce cci ccl cco ccx ce- ceb cec cee cei cel ceo cex ci- cib cic cie cii cil cio cix cl- clb clc cle cli cll clo clx co- cob coc coe coi col coo cox cxc cxi cxl cxo cxx ebb ebc ebe ebi ebl ebo ebx ec- ecb ecc ece eci ecl eco ecx eeb eec eee eel eeo eex eib eic eie eii eil eio eix elb elc ele eli ell elo elx eo- eob eoc eoe eoi eol eoo ex- exc exe exi exl exo exx ibb ibc ibe ibi ibl ibo ibx icb icc ice ici icl ico ie- iec iee iei iel iex iib iic iie iii iil iio iix il- ilb ilc ile ili ill ilo ilx io- iob ioc ioe ioi iol ioo ixc ixe ixi ixl lbb lbc lbe lbi lbl lbo lbx lcb lcc lce lci lcl lco lcx leb lec lee lei lel leo lex lib lic lie lii lil lio lix llb llc lle lli lll llo lob loc loe loi lol loo lox lxc lxi lxo lxx o-i ob- obb obc obe obi obl obo obx oc- ocb occ oci ocl oco ocx oeb oec oee oei oel oeo oex oib oic oie oii oil oio olb olc ole oli oll olo oo- oob ooc ooi ool ooo oox ox- oxb oxc oxi oxo oxx xbc xbe xbl xbx xcb xci xcl xcx xee xel xex xic xie xii xio xix xlb xli xoc xoi xoo xox xxi xxl xxo xxx