a-a a-c aaa aac aae aag aam aap aas ac- aca acc ace acg acm acp acs aea aec aee aeg aem aep aes ag- aga agc age agg agm agp ags ama amc ame amg amm amp ams ap- apa apc ape apg apm app aps as- asa asc ase asg asm asp ass c-- caa cac cae cag cam cap cas cca ccc cce ccg ccm ccp ccs ce- cea cec cee ceg cem cep ces cga cgc cge cgg cgm cgp cgs cma cmc cme cmg cmm cmp cms cpa cpc cpe cpg cpm cpp cps csa csc cse csg csm csp css eaa eac eae eag eam eap eas ec- eca ecc ece ecg ecm ecs eea eec eee eeg eem eep ees ega egc ege egg egm egp egs em- ema emc eme emg emm emp ems ep- epa epc epe epg epm epp eps es- esa esc ese esg esm esp ess g-p gaa gac gae gag gam gap gas gca gcc gce gcg gcm gcp gcs ge- gea gec gee geg gem gep ges gga ggc ggg ggm ggp ggs gma gmc gme gmg gmm gmp gms gpa gpc gpe gpg gpm gpp gps gsa gsc gse gsg gsm gsp gss maa mac mae mag mam map mas mc- mca mcc mce mcg mcm mcp mcs mea mec mee meg mem mep mes mga mgc mge mgm mgp mgs mma mmc mme mmg mmm mmp mms mpa mpc mpe mpg mpm mpp mps msa msc mse msg msm msp mss p-p paa pac pae pag pam pap pas pca pcc pce pcg pcm pcp pcs pea pec pee peg pem pep pes pga pgc pge pgg pgm pgp pgs pma pmc pme pmg pmm pmp pms ppa ppc ppe ppg ppm ppp pps ps- psa psc pse psg psm psp pss saa sac sae sag sam sap sas sca scc sce scg scm scp scs se- sea sec see seg sem sep ses sga sgc sge sgg sgm sgp sgs sma smc sme smg smm smp sms spa spc spe spg spm spp sps ss- ssa ssc sse ssg ssm ssp sss