-ic bbb bbc bbg bbi bbl bbn bbr bcb bcc bcg bci bcl bcn bcr bgb bgc bgg bgi bgl bgn bgr bi- bib bic big bii bil bin bir blb blc blg bli bll bln blr bnb bnc bng bni bnl bnn bnr brb brg bri brl brn brr c-- cbb cbc cbg cbi cbl cbn cbr ccb ccc ccg cci ccl ccn ccr cgb cgc cgg cgi cgl cgn cgr ci- cib cic cig cii cil cin cir cl- clb clc clg cli cll cln clr cn- cnb cnc cng cni cnl cnn cnr crb crc crg cri crl crn crr gbc gbg gbi gbl gbn gbr gcb gcc gcg gci gcl gcn gcr ggb ggc ggg ggi ggn ggr gib gic gig gii gil gin gir glb glc glg gli gll gln glr gnb gnc gni gnl gnn gnr grb grc grg gri grl grn grr ibb ibc ibg ibi ibl ibn ibr icb icc icg ici icl icn icr igb igc igg igi igl ign igr iib iic iii iil iin iir il- ilb ilc ilg ili ill iln ilr in- inb inc ing ini inl inn inr ir- irb irc irg iri irl irn irr lbb lbc lbg lbi lbl lbr lcb lcc lcg lci lcl lcn lcr lgb lgc lgg lgi lgl lgn lgr lib lic lig lii lil lin lir llb llc llg lli lll lln llr lnb lnc lng lni lnl lnn lnr lrb lrc lrg lri lrn lrr n-i nbb nbc nbg nbi nbl nbn nbr ncb ncc ncg nci ncl ncn ncr ngb ngc ngg ngi ngl ngn nib nic nig nii nil nin nir nlb nlc nlg nli nll nln nlr nnb nnc nng nni nnl nnn nrb nrc nrg nri nrl nrn nrr rbb rbc rbg rbi rbl rbn rbr rcb rcc rcg rci rcl rcn rcr rgb rgc rgg rgi rgn rgr rib ric rig rii ril rin rir rlc rlg rli rll rln rlr rnb rnc rng rni rnn rnr rrb rrc rrg rri rrl rrn rrr