-ol bbb bbc bbe bbg bbh bbl bbn bbo bcb bcc bce bcg bch bcl bcn bco be- beb bec bee beg beh bel ben beo bgb bgc bge bgg bgh bgl bgn bgo bhb bhc bhe bhg bhh bhl bho blb blc ble blg blh bll bln blo bnb bnc bne bng bnl bnn bno bob boc boe bog boh bol bon boo c-- cbb cbc cbe cbg cbh cbl cbn cbo ccb ccc cce ccg cch ccl ccn cco ce- ceb cec cee ceg ceh cel cen ceo cgb cgc cge cgg cgh cgl cgn cgo ch- chb chc che chg chh chl chn cho cl- clb clc cle clg clh cll cln clo cn- cnb cnc cne cng cnh cnl cnn cno co- cob coc coe cog coh col con coo ebb ebc ebe ebg ebh ebl ebn ebo ec- ecb ecc ece ecg ech ecl ecn eco eeb eec eee eeg eel een eeo egb egc ege egg egh egl egn ego ehb ehc ehe ehg ehh ehl ehn eho elb elc ele elg elh ell eln elo en- enb enc ene eng enh enl enn eno eo- eob eoc eoe eog eoh eol eon eoo gbc gbe gbg gbh gbl gbn gbo gcb gcc gce gcg gch gcl gcn gco ge- geb gec gee geg geh gel gen geo ggb ggc ggg ggh ggn ggo ghb ghc ghe ghg ghh ghl ghn gho glb glc gle glg glh gll gln glo gnb gnc gne gnl gnn gno gob goc goe gog goh gol gon goo hbb hbc hbe hbg hbh hbl hbn hbo hcb hcc hce hcg hch hcl hcn hco he- heb hec hee heg heh hel hen heo hgb hgc hge hgg hgh hgl hgn hgo hhb hhc hhe hhg hhh hhl hhn hho hlb hlc hle hlg hlh hll hln hlo hnb hnc hne hng hnh hnl hnn hno hob hoc hoe hog hoh hol hon hoo lbb lbc lbe lbg lbh lbl lbo lcb lcc lce lcg lch lcl lcn lco leb lec lee leg leh lel len leo lgb lgc lge lgg lgh lgl lgn lgo lhb lhc lhh lho llb llc lle llg lll lln llo lnb lnc lne lng lnh lnl lnn lno lob loc loe log loh lol lon loo nbb nbc nbe nbg nbl nbn nbo ncb ncc nce ncg nch ncl ncn nco ne- neb nec nee neg neh nel nen neo ngb ngc nge ngg ngh ngl ngn ngo nhb nhc nhe nhg nhh nhl nhn nlb nlc nle nlg nlh nll nln nlo nnb nnc nne nng nnh nnl nnn nno no- nob noc noe nog noh nol non noo ob- obb obc obe obg obh obl obn obo oc- ocb occ ocg och ocl ocn oco oeb oec oee oeg oeh oel oen oeo ogc oge ogg ogh ogl ogn ogo ohc ohe ohg ohh ohl ohn oho olb olc ole olg oll oln olo on- onb onc one ong onh onl onn ono oo- oob ooc oog ooh ool oon ooo