-er bbb bbe bbg bbi bbn bbr be- beb bee beg bei ben ber bez bgb bge bgg bgi bgn bgr bgz bi- bib bie big bii bin bir biz bnb bne bng bni bnn bnr bnz brb bre brg bri brn brr brz bze bzn bzr bzz ebb ebe ebg ebi ebn ebr eeb eee eeg een eer egb ege egg egi egn egr eib eie eig eii ein eir en- enb ene eng eni enn enr enz erb ere erg eri ern err erz eze ezr ezz gbe gbg gbi gbn gbr gbz ge- geb gee geg gei gen ger gez ggb ggg ggi ggn ggr ggz gib gie gig gii gin gir giz gnb gne gni gnn gnr grb gre grg gri grn grr gzr ibb ibe ibg ibi ibn ibr ibz ie- iee ieg iei ien ier igb ige igg igi ign igr iib iie iii iin iir in- inb ine ing ini inn inr ir- irb ire irg iri irn irr ize izi izz n-i nbb nbe nbg nbi nbn nbr ne- neb nee neg nei nen ner nez ngb nge ngg ngi ngn nib nie nig nii nin nir niz nnb nne nng nni nnn nnz nrb nre nrg nri nrn nrr nrz nzb nze nzg nzi nzz rbb rbe rbg rbi rbn rbr re- reb ree reg rei ren rer rez rgb rge rgg rgi rgn rgr rib rie rig rii rin rir riz rnb rng rni rnn rnr rnz rrb rrg rri rrn rrr rzb rze z-g zbb zbr zeb zee zen zer zez zgb zgg zgi zib zie zig zin zir ziz zne znn zzr zzz