a-a a-i aaa aaf aag aai aam af- afa aff afg afi afm ag- aga agf agg agi agm ai- aia aif aig aii aim ama amf amg ami amm faa faf fag fai fam ffa fff ffg ffi ffm fga fgf fgg fgi fgm fia fif fig fii fim fma fmf fmg fmi fmm gaa gaf gag gai gam gfa gff gfi gfm gga ggg ggi ggm gia gif gig gii gim gma gmf gmg gmi gmm i-f ia- iaa iaf iag iai iam ifa iff ifg ifi ifm iga igf igg igi igm iia iif iii iim im- ima imf img imi imm m-f maa maf mag mai mam mfa mff mfg mfi mfm mga mgf mgi mgm mi- mia mif mig mii mim mma mmf mmg mmi mmm