-ic a-a a-b a-c a-i aaa aab aac aag aah aai ab- aba abb abc abg abh abi ac- aca acb acc acg ach aci ag- aga agb agc agg agh agi aha ahb ahc ahg ahh ahi ai- aia aib aic aig aih aii baa bab bac bag bah bai bba bbb bbc bbg bbh bbi bca bcb bcc bcg bch bci bga bgb bgc bgg bgh bgi bha bhb bhc bhg bhh bhi bi- bia bib bic big bih bii c-- caa cab cac cag cah cai cba cbb cbc cbg cbh cbi cca ccb ccc ccg cch cci cga cgb cgc cgg cgh cgi ch- cha chb chc chg chh chi ci- cia cib cic cig cih cii gaa gab gac gag gah gai gba gbc gbg gbh gbi gca gcb gcc gcg gch gci gga ggb ggc ggg ggh ggi gha ghb ghc ghg ghh ghi gia gib gic gig gih gii h-i haa hab hac hag hah hai hba hbb hbc hbg hbh hbi hca hcb hcc hcg hch hci hga hgb hgc hgg hgh hgi hha hhb hhc hhg hhh hhi hia hib hic hig hih hii ia- iaa iab iac iag iah iai iba ibb ibc ibg ibh ibi ica icb icc icg ich ici iga igb igc igg igh igi iha ihb ihc ihg ihh ihi iia iib iic iih iii