-ic bbb bbc bbe bbg bbi bbk bbl bbm bbn bcb bcc bce bcg bci bck bcl bcm bcn be- beb bec bee beg bei bek bel bem ben bgb bgc bge bgg bgi bgk bgl bgm bgn bi- bib bic bie big bii bik bil bim bin bkb bkc bke bkg bkk bkl bkm bkn blb blc ble blg bli blk bll blm bln bmb bmc bme bmg bmi bmk bml bmm bmn bnb bnc bne bng bni bnk bnl bnn c-- cbb cbc cbe cbg cbi cbk cbl cbm cbn ccb ccc cce ccg cci cck ccl ccm ccn ce- ceb cec cee ceg cei cek cel cem cen cgb cgc cge cgg cgi cgl cgm cgn ci- cib cic cie cig cii cik cil cim cin ckb ckc cki ckm cl- clb clc cle clg cli clk cll clm cln cmb cmc cme cmg cmi cmk cml cmm cmn cn- cnb cnc cne cng cni cnl cnm cnn ebb ebc ebe ebg ebi ebk ebl ebm ebn ec- ecb ecc ece ecg eci eck ecl ecm ecn eeb eec eee eeg eek eel eem een egb egc ege egg egi egl egm egn eib eic eie eig eii eik eil eim ein ekb ekc eke ekg eki ekl elb elc ele elg eli elk ell elm eln em- emb emc eme emg emi emk eml emm emn en- enb enc ene eng eni enk enl enm enn gbc gbe gbg gbi gbk gbl gbm gbn gcb gcc gce gcg gci gck gcl gcm gcn ge- geb gec gee geg gei gek gel gem gen ggb ggc ggg ggi ggm ggn gib gic gie gig gii gik gil gim gin gkb gkm gkn glb glc gle glg gli glk gll glm gln gmb gmc gme gmg gmi gml gmm gmn gnb gnc gne gni gnl gnm gnn ibb ibc ibe ibg ibi ibk ibl ibm ibn icb icc ice icg ici ick icl icm icn ie- iec iee ieg iei iek iel iem ien igb igc ige igg igi igk igl igm ign iib iic iie iii iil iim iin ikb ikc ike iki ikk ikl il- ilb ilc ile ilg ili ilk ill ilm iln im- imb imc ime img imi iml imm imn in- inb inc ine ing ini ink inl inm inn kbb kbc kbe kbi kbk kbl kbm kbn kcb kcc kce kcg kci kck kcl kcm kcn ke- keb kec kee keg kei kek kel kem ken kgb kgc kgi kgl kgm kib kic kie kig kii kik kil kim kin kkb kkc kke kki kkk kkl kkm kkn kl- klb klc klg kli klm kmb kmc kme kmg kmi kmk kml kmm kn- knc kne kng kni knk knl knm knn lbb lbc lbe lbg lbi lbk lbl lbm lcb lcc lce lcg lci lck lcl lcm lcn leb lec lee leg lei lek lel lem len lgb lgc lge lgg lgi lgk lgl lgm lgn lib lic lie lig lii lik lil lim lin lkb lkg lkl llb llc lle llg lli llk lll llm lln lmb lmc lme lmg lmi lmk lml lmm lmn lnb lnc lne lng lni lnk lnl lnm lnn mbb mbc mbe mbg mbi mbk mbl mbm mc- mcb mcc mce mcg mci mck mcl mcm mcn meb mec mee meg mei mek mel mem men mgb mgc mge mgi mgk mgl mgm mgn mi- mib mic mie mig mii mik mil mim min mkb mkc mke mkg mkk mkl mkm mkn mlb mlc mle mlg mli mlk mll mlm mln mmb mmc mme mmg mmi mmk mml mmm mmn mnb mnc mne mng mni mnk mnl mnm mnn n-i nbb nbc nbe nbg nbi nbk nbl nbm nbn ncb ncc nce ncg nci nck ncl ncm ncn ne- neb nec nee neg nei nek nel nem nen ngb ngc nge ngg ngi ngk ngl ngm ngn nib nic nie nig nii nik nil nim nin nkc nke nki nkk nkm nkn nlb nlc nle nlg nli nlk nll nlm nln nmb nmc nme nmg nmi nmk nml nmm nmn nnb nnc nne nng nni nnk nnl nnm nnn