-ic a-a a-c a-i aaa aac aad aae aag aai ac- aca acc acd ace acg aci ad- ada adc add ade adg adi aea aec aed aee aeg aei ag- aga agc agd age agg agi ai- aia aic aid aie aig aii c-- caa cac cad cae cag cai cca ccc ccd cce ccg cci cda cdc cdd cde cdg cdi ce- cea cec ced cee ceg cei cga cgc cgd cge cgg cgi ci- cia cic cid cie cig cii daa dac dad dae dag dai dca dcc dcd dce dcg dci dda ddc ddd dde ddg ddi de- dea dec ded dee deg dei dga dgc dgd dge dgg dgi di- dia dic did die dig dii eaa eac ead eae eag eai ec- eca ecc ecd ece ecg eci ed- eda edc edd ede edg edi eea eec eed eee eeg ega egc egd ege egg egi eia eic eid eie eig eii g-d gaa gac gad gae gag gai gca gcc gcd gce gcg gci gda gdc gdd gde gdi ge- gea gec ged gee geg gei gga ggc ggd ggg ggi gia gic gid gie gig gii i-d ia- iaa iac iad iae iag iai ica icc icd ice icg ici ida idc idd ide idg idi ie- iea iec ied iee ieg iei iga igc igd ige igg igi iia iic iid iie iii