-ic bbb bbc bbg bbi bbk bbl bbn bcb bcc bcg bci bck bcl bcn bgb bgc bgg bgi bgk bgl bgn bi- bib bic big bii bik bil bin bkb bkc bkg bkk bkl bkn blb blc blg bli blk bll bln bnb bnc bng bni bnk bnl bnn c-- cbb cbc cbg cbi cbk cbl cbn ccb ccc ccg cci cck ccl ccn cgb cgc cgg cgi cgl cgn ci- cib cic cig cii cik cil cin ckb ckc cki cl- clb clc clg cli clk cll cln cn- cnb cnc cng cni cnl cnn gbc gbg gbi gbk gbl gbn gcb gcc gcg gci gck gcl gcn ggb ggc ggg ggi ggn gib gic gig gii gik gil gin gkb gkn glb glc glg gli glk gll gln gnb gnc gni gnl gnn ibb ibc ibg ibi ibk ibl ibn icb icc icg ici ick icl icn igb igc igg igi igk igl ign iib iic iii iil iin ikb ikc iki ikk ikl il- ilb ilc ilg ili ilk ill iln in- inb inc ing ini ink inl inn kbb kbc kbi kbk kbl kbn kcb kcc kcg kci kck kcl kcn kgb kgc kgi kgl kib kic kig kii kik kil kin kkb kkc kki kkk kkl kkn kl- klb klc klg kli kn- knc kng kni knk knl knn lbb lbc lbg lbi lbk lbl lcb lcc lcg lci lck lcl lcn lgb lgc lgg lgi lgk lgl lgn lib lic lig lii lik lil lin lkb lkg lkl llb llc llg lli llk lll lln lnb lnc lng lni lnk lnl lnn n-i nbb nbc nbg nbi nbk nbl nbn ncb ncc ncg nci nck ncl ncn ngb ngc ngg ngi ngk ngl ngn nib nic nig nii nik nil nin nkc nki nkk nkn nlb nlc nlg nli nlk nll nln nnb nnc nng nni nnk nnl nnn