-ic a-a a-b a-c a-i aaa aab aac aag aai aam ab- aba abb abc abg abi abm ac- aca acb acc acg aci acm ag- aga agb agc agg agi agm ai- aia aib aic aig aii aim ama amb amc amg ami amm baa bab bac bag bai bam bba bbb bbc bbg bbi bbm bca bcb bcc bcg bci bcm bga bgb bgc bgg bgi bgm bi- bia bib bic big bii bim bma bmb bmc bmg bmi bmm c-- caa cab cac cag cai cam cba cbb cbc cbg cbi cbm cca ccb ccc ccg cci ccm cga cgb cgc cgg cgi cgm ci- cia cib cic cig cii cim cma cmb cmc cmg cmi cmm gaa gab gac gag gai gam gba gbc gbg gbi gbm gca gcb gcc gcg gci gcm gga ggb ggc ggg ggi ggm gia gib gic gig gii gim gma gmb gmc gmg gmi gmm ia- iaa iab iac iag iai iam iba ibb ibc ibg ibi ibm ica icb icc icg ici icm iga igb igc igg igi igm iia iib iic iii iim im- ima imb imc img imi imm maa mab mac mag mai mam mba mbb mbc mbg mbi mbm mc- mca mcb mcc mcg mci mcm mga mgb mgc mgi mgm mi- mia mib mic mig mii mim mma mmb mmc mmg mmi mmm