b-p bbb bbe bbg bbi bbo bbp be- beb bee beg bei beo bep bgb bge bgg bgi bgo bgp bi- bib bie big bii bio bip bob boe bog boi boo bop bpb bpe bpg bpi bpo bpp ebb ebe ebg ebi ebo ebp eeb eee eeg eeo eep egb ege egg egi ego egp eib eie eig eii eio eip eo- eob eoe eog eoi eoo eop ep- epb epe epg epi epo epp g-p gbe gbg gbi gbo gbp ge- geb gee geg gei geo gep ggb ggg ggi ggo ggp gib gie gig gii gio gip gob goe gog goi goo gop gpb gpe gpg gpi gpo gpp ibb ibe ibg ibi ibo ibp ie- iee ieg iei iep igb ige igg igi igo igp iib iie iii iio iip io- iob ioe iog ioi ioo iop ipb ipe ipg ipi ipo ipp o-i ob- obb obe obg obi obo obp oeb oee oeg oei oeo oep oge ogg ogi ogo ogp oib oie oii oio oip oo- oob oog ooi ooo oop op- opb ope opg opi opo opp p-p pbb pbe pbg pbi pbo pbp peb pee peg pei peo pep pgb pge pgg pgi pgo pgp pib pie pig pii pio pip pob poe pog poi poo pop ppb ppe ppg ppi ppo ppp