bbb bbc bbe bbg bbh bbk bbl bbn bcb bcc bce bcg bch bck bcl bcn be- beb bec bee beg beh bek bel ben bgb bgc bge bgg bgh bgk bgl bgn bhb bhc bhe bhg bhh bhk bhl bkb bkc bke bkg bkk bkl bkn blb blc ble blg blh blk bll bln bnb bnc bne bng bnk bnl bnn c-- cbb cbc cbe cbg cbh cbk cbl cbn ccb ccc cce ccg cch cck ccl ccn ce- ceb cec cee ceg ceh cek cel cen cgb cgc cge cgg cgh cgl cgn ch- chb chc che chg chh chk chl chn ckb ckc ckh cl- clb clc cle clg clh clk cll cln cn- cnb cnc cne cng cnh cnl cnn ebb ebc ebe ebg ebh ebk ebl ebn ec- ecb ecc ece ecg ech eck ecl ecn eeb eec eee eeg eek eel een egb egc ege egg egh egl egn ehb ehc ehe ehg ehh ehl ehn ekb ekc eke ekg ekh ekl elb elc ele elg elh elk ell eln en- enb enc ene eng enh enk enl enn gbc gbe gbg gbh gbk gbl gbn gcb gcc gce gcg gch gck gcl gcn ge- geb gec gee geg geh gek gel gen ggb ggc ggg ggh ggn ghb ghc ghe ghg ghh ghl ghn gkb gkh gkn glb glc gle glg glh glk gll gln gnb gnc gne gnl gnn hbb hbc hbe hbg hbh hbk hbl hbn hcb hcc hce hcg hch hck hcl hcn he- heb hec hee heg heh hek hel hen hgb hgc hge hgg hgh hgk hgl hgn hhb hhc hhe hhg hhh hhk hhl hhn hkb hkg hkh hkk hkl hkn hlb hlc hle hlg hlh hll hln hnb hnc hne hng hnh hnk hnl hnn kbb kbc kbe kbh kbk kbl kbn kcb kcc kce kcg kch kck kcl kcn ke- keb kec kee keg keh kek kel ken kgb kgc kgh kgl khe khh khk khn kkb kkc kke kkh kkk kkl kkn kl- klb klc klg klh kn- knc kne kng knk knl knn lbb lbc lbe lbg lbh lbk lbl lcb lcc lce lcg lch lck lcl lcn leb lec lee leg leh lek lel len lgb lgc lge lgg lgh lgk lgl lgn lhb lhc lhh lhk lkb lkg lkh lkl llb llc lle llg llk lll lln lnb lnc lne lng lnh lnk lnl lnn nbb nbc nbe nbg nbk nbl nbn ncb ncc nce ncg nch nck ncl ncn ne- neb nec nee neg neh nek nel nen ngb ngc nge ngg ngh ngk ngl ngn nhb nhc nhe nhg nhh nhk nhl nhn nkc nke nkk nkn nlb nlc nle nlg nlh nlk nll nln nnb nnc nne nng nnh nnk nnl nnn