-ol bbb bbc bbd bbe bbg bbl bbn bbo bcb bcc bcd bce bcg bcl bcn bco bdb bdc bdd bde bdg bdl bdo be- beb bec bed bee beg bel ben beo bgb bgc bgd bge bgg bgl bgn bgo blb blc bld ble blg bll bln blo bnb bnc bnd bne bng bnl bnn bno bob boc bod boe bog bol bon boo c-- cbb cbc cbd cbe cbg cbl cbn cbo ccb ccc ccd cce ccg ccl ccn cco cdb cdc cdd cde cdg cdl cdn cdo ce- ceb cec ced cee ceg cel cen ceo cgb cgc cgd cge cgg cgl cgn cgo cl- clb clc cld cle clg cll cln clo cn- cnb cnc cnd cne cng cnl cnn cno co- cob coc cod coe cog col con coo dbb dbc dbd dbe dbg dbl dbn dbo dcb dcc dcd dce dcg dcl dcn dco ddb ddc ddd dde ddg ddl ddn ddo de- deb dec ded dee deg del den deo dgc dgd dge dgg dgl dgn dl- dlb dlc dld dle dlg dll dlo dnb dnc dnd dne dng dnl dnn dno dob doc dod doe dog dol don doo ebb ebc ebd ebe ebg ebl ebn ebo ec- ecb ecc ecd ece ecg ecl ecn eco ed- edb edc edd ede edg edl edn edo eeb eec eed eee eeg eel een eeo egb egc egd ege egg egl egn ego elb elc eld ele elg ell eln elo en- enb enc end ene eng enl enn eno eo- eob eoc eod eoe eog eol eon eoo g-d gbc gbd gbe gbg gbl gbn gbo gcb gcc gcd gce gcg gcl gcn gco gdb gdc gdd gde gdl gdn gdo ge- geb gec ged gee geg gel gen geo ggb ggc ggd ggg ggn ggo glb glc gld gle glg gll gln glo gnb gnc gnd gne gnl gnn gno gob goc god goe gog gol gon goo lbb lbc lbd lbe lbg lbl lbo lcb lcc lcd lce lcg lcl lcn lco ldb ldc ldd lde ldg ldl ldn ldo leb lec led lee leg lel len leo lgb lgc lgd lge lgg lgl lgn lgo llb llc lld lle llg lll lln llo lnb lnc lnd lne lng lnl lnn lno lob loc lod loe log lol lon loo nbb nbc nbd nbe nbg nbl nbn nbo ncb ncc ncd nce ncg ncl ncn nco ndb ndc ndd nde ndg ndl ndn ndo ne- neb nec ned nee neg nel nen neo ngb ngc ngd nge ngg ngl ngn ngo nlb nlc nld nle nlg nll nln nlo nnb nnc nne nng nnl nnn nno no- nob noc nod noe nog nol non noo ob- obb obc obd obe obg obl obn obo oc- ocb occ ocd ocg ocl ocn oco odb odc odd ode odg odl odn odo oeb oec oed oee oeg oel oen oeo ogc ogd oge ogg ogl ogn ogo olb olc old ole olg oll oln olo on- onb onc ond one ong onl onn ono oo- oob ooc ood oog ool oon ooo