-ic a-a a-c a-i aaa aac aag aai aap aas ac- aca acc acg aci acp acs ag- aga agc agg agi agp ags ai- aia aic aig aii aip ais ap- apa apc apg api app aps as- asa asc asg asi asp ass c-- caa cac cag cai cap cas cca ccc ccg cci ccp ccs cga cgc cgg cgi cgp cgs ci- cia cic cig cii cip cis cpa cpc cpg cpi cpp cps csa csc csg csi csp css g-p gaa gac gag gai gap gas gca gcc gcg gci gcp gcs gga ggc ggg ggi ggp ggs gia gic gig gii gip gis gpa gpc gpg gpi gpp gps gsa gsc gsg gsi gsp gss ia- iaa iac iag iai iap ias ica icc icg ici icp ics iga igc igg igi igp igs iia iic iii iip iis ipa ipc ipg ipi ipp ips is- isa isc isg isi isp iss p-p paa pac pag pai pap pas pca pcc pcg pci pcp pcs pga pgc pgg pgi pgp pgs pia pic pig pii pip pis ppa ppc ppg ppi ppp pps ps- psa psc psg psi psp pss saa sac sag sai sap sas sca scc scg sci scp scs sga sgc sgg sgi sgp sgs sia sic sig sii sip sis spa spc spg spi spp sps ss- ssa ssc ssg ssi ssp sss