-ic a-a a-c a-i aaa aac aag aai aao ac- aca acc acg aci aco ag- aga agc agg agi ago ai- aia aic aig aii aio aoa aoc aog aoi aoo c-- caa cac cag cai cao cca ccc ccg cci cco cga cgc cgg cgi cgo ci- cia cic cig cii cio co- coa coc cog coi coo gaa gac gag gai gao gca gcc gcg gci gco gga ggc ggg ggi ggo gia gic gig gii gio goa goc gog goi goo ia- iaa iac iag iai iao ica icc icg ici ico iga igc igg igi igo iia iic iii iio io- ioa ioc iog ioi ioo o-i oaa oac oag oai oao oc- oca occ ocg oci oco oga ogc ogg ogi ogo oia oic oii oio oo- ooa ooc oog ooi ooo