-ic bbb bbc bbd bbe bbg bbi bbk bbn bcb bcc bcd bce bcg bci bck bcn bdb bdc bdd bde bdg bdi bdk be- beb bec bed bee beg bei bek ben bgb bgc bgd bge bgg bgi bgk bgn bi- bib bic bid bie big bii bik bin bkb bkc bke bkg bkk bkn bnb bnc bnd bne bng bni bnk bnn c-- cbb cbc cbd cbe cbg cbi cbk cbn ccb ccc ccd cce ccg cci cck ccn cdb cdc cdd cde cdg cdi cdk cdn ce- ceb cec ced cee ceg cei cek cen cgb cgc cgd cge cgg cgi cgn ci- cib cic cid cie cig cii cik cin ckb ckc ckd cki cn- cnb cnc cnd cne cng cni cnn dbb dbc dbd dbe dbg dbi dbk dbn dcb dcc dcd dce dcg dci dck dcn ddb ddc ddd dde ddg ddi ddk ddn de- deb dec ded dee deg dei dek den dgc dgd dge dgg dgi dgk dgn di- dib dic did die dig dii dik din dkb dkc dke dkg dki dkk dnb dnc dnd dne dng dni dnk dnn ebb ebc ebd ebe ebg ebi ebk ebn ec- ecb ecc ecd ece ecg eci eck ecn ed- edb edc edd ede edg edi edk edn eeb eec eed eee eeg eek een egb egc egd ege egg egi egn eib eic eid eie eig eii eik ein ekb ekc ekd eke ekg eki en- enb enc end ene eng eni enk enn g-d gbc gbd gbe gbg gbi gbk gbn gcb gcc gcd gce gcg gci gck gcn gdb gdc gdd gde gdi gdk gdn ge- geb gec ged gee geg gei gek gen ggb ggc ggd ggg ggi ggn gib gic gid gie gig gii gik gin gkb gkd gkn gnb gnc gnd gne gni gnn i-d ibb ibc ibd ibe ibg ibi ibk ibn icb icc icd ice icg ici ick icn idb idc idd ide idg idi idk idn ie- iec ied iee ieg iei iek ien igb igc igd ige igg igi igk ign iib iic iid iie iii iin ikb ikc ike iki ikk in- inb inc ind ine ing ini ink inn kbb kbc kbd kbe kbi kbk kbn kcb kcc kcd kce kcg kci kck kcn kdb kdc kde kdg kdk ke- keb kec ked kee keg kei kek ken kgb kgc kgd kgi kib kic kid kie kig kii kik kin kkb kkc kke kki kkk kkn kn- knc knd kne kng kni knk knn n-i nbb nbc nbd nbe nbg nbi nbk nbn ncb ncc ncd nce ncg nci nck ncn ndb ndc ndd nde ndg ndi ndk ndn ne- neb nec ned nee neg nei nek nen ngb ngc ngd nge ngg ngi ngk ngn nib nic nid nie nig nii nik nin nkc nke nki nkk nkn nnb nnc nne nng nni nnk nnn