bbb bbe bbg bbi bbk bbn bbo be- beb bee beg bei bek ben beo bgb bge bgg bgi bgk bgn bgo bi- bib bie big bii bik bin bio bkb bke bkg bkk bkn bko bnb bne bng bni bnk bnn bno bob boe bog boi bok bon boo ebb ebe ebg ebi ebk ebn ebo eeb eee eeg eek een eeo egb ege egg egi egn ego eib eie eig eii eik ein eio ekb eke ekg eki eko en- enb ene eng eni enk enn eno eo- eob eoe eog eoi eok eon eoo gbe gbg gbi gbk gbn gbo ge- geb gee geg gei gek gen geo ggb ggg ggi ggn ggo gib gie gig gii gik gin gio gkb gkn gko gnb gne gni gnn gno gob goe gog goi gok gon goo ibb ibe ibg ibi ibk ibn ibo ie- iee ieg iei iek ien igb ige igg igi igk ign igo iib iie iii iin iio ikb ike iki ikk iko in- inb ine ing ini ink inn ino io- iob ioe iog ioi ion ioo kbb kbe kbi kbk kbn kbo ke- keb kee keg kei kek ken keo kgb kgi kgo kib kie kig kii kik kin kio kkb kke kki kkk kkn kn- kne kng kni knk knn kno kob koe kog koi kok kon koo n-i nbb nbe nbg nbi nbk nbn nbo ne- neb nee neg nei nek nen neo ngb nge ngg ngi ngk ngn ngo nib nie nig nii nik nin nio nke nki nkk nkn nko nnb nne nng nni nnk nnn nno no- nob noe nog noi nok non noo o-i ob- obb obe obg obi obk obn obo oeb oee oeg oei oen oeo oge ogg ogi ogn ogo oib oie oii oik oin oio okb oke okg oki okk oko on- onb one ong oni onk onn ono oo- oob oog ooi ook oon ooo