a-a a-i aaa aae aaf aag aai aea aee aef aeg aei af- afa afe aff afg afi ag- aga age agf agg agi ai- aia aie aif aig aii eaa eae eaf eag eai eea eee eef eeg ef- efa efe eff efg efi ega ege egf egg egi eia eie eif eig eii faa fae faf fag fai fea fee fef feg fei ffa ffe fff ffg ffi fga fge fgf fgg fgi fia fie fif fig fii gaa gae gaf gag gai ge- gea gee gef geg gei gfa gfe gff gfi gga ggg ggi gia gie gif gig gii i-f ia- iaa iae iaf iag iai ie- iea iee ief ieg iei ifa ife iff ifg ifi iga ige igf igg igi iia iie iif iii