-ic a-a a-b a-c a-i aaa aab aac aag aai aam aas ab- aba abb abc abg abi abm abs ac- aca acb acc acg aci acm acs ag- aga agb agc agg agi agm ags ai- aia aib aic aig aii aim ais ama amb amc amg ami amm ams as- asa asb asc asg asi asm ass baa bab bac bag bai bam bas bba bbb bbc bbg bbi bbm bbs bca bcb bcc bcg bci bcm bcs bga bgb bgc bgg bgi bgm bgs bi- bia bib bic big bii bim bis bma bmb bmc bmg bmi bmm bms bsa bsb bsc bsg bsi bsm bss c-- caa cab cac cag cai cam cas cba cbb cbc cbg cbi cbm cbs cca ccb ccc ccg cci ccm ccs cga cgb cgc cgg cgi cgm cgs ci- cia cib cic cig cii cim cis cma cmb cmc cmg cmi cmm cms csa csb csc csg csi csm css gaa gab gac gag gai gam gas gba gbc gbg gbi gbm gbs gca gcb gcc gcg gci gcm gcs gga ggb ggc ggg ggi ggm ggs gia gib gic gig gii gim gis gma gmb gmc gmg gmi gmm gms gsa gsb gsc gsg gsi gsm gss ia- iaa iab iac iag iai iam ias iba ibb ibc ibg ibi ibm ibs ica icb icc icg ici icm ics iga igb igc igg igi igm igs iia iib iic iii iim iis im- ima imb imc img imi imm ims is- isa isb isc isg isi ism iss maa mab mac mag mai mam mas mba mbb mbc mbg mbi mbm mbs mc- mca mcb mcc mcg mci mcm mcs mga mgb mgc mgi mgm mgs mi- mia mib mic mig mii mim mis mma mmb mmc mmg mmi mmm mms msa msb msc msg msi msm mss saa sab sac sag sai sam sas sba sbb sbc sbg sbi sbm sbs sca scb scc scg sci scm scs sga sgb sgc sgg sgi sgm sgs sia sib sic sig sii sim sis sma smb smc smg smi smm sms ss- ssa ssb ssc ssg ssi ssm sss