-ic a-a a-c a-i aaa aac aad aae aag aai aas ac- aca acc acd ace acg aci acs ad- ada adc add ade adg adi ads aea aec aed aee aeg aei aes ag- aga agc agd age agg agi ags ai- aia aic aid aie aig aii ais as- asa asc asd ase asg asi ass c-- caa cac cad cae cag cai cas cca ccc ccd cce ccg cci ccs cda cdc cdd cde cdg cdi cds ce- cea cec ced cee ceg cei ces cga cgc cgd cge cgg cgi cgs ci- cia cic cid cie cig cii cis csa csc csd cse csg csi css daa dac dad dae dag dai das dca dcc dcd dce dcg dci dcs dda ddc ddd dde ddg ddi dds de- dea dec ded dee deg dei des dga dgc dgd dge dgg dgi dgs di- dia dic did die dig dii dis dsa dsc dsd dse dsg dsi dss eaa eac ead eae eag eai eas ec- eca ecc ecd ece ecg eci ecs ed- eda edc edd ede edg edi eds eea eec eed eee eeg ees ega egc egd ege egg egi egs eia eic eid eie eig eii eis es- esa esc esd ese esg esi ess g-d gaa gac gad gae gag gai gas gca gcc gcd gce gcg gci gcs gda gdc gdd gde gdi gds ge- gea gec ged gee geg gei ges gga ggc ggd ggg ggi ggs gia gic gid gie gig gii gis gsa gsc gsd gse gsg gsi gss i-d ia- iaa iac iad iae iag iai ias ica icc icd ice icg ici ics ida idc idd ide idg idi ids ie- iea iec ied iee ieg iei ies iga igc igd ige igg igi igs iia iic iid iie iii iis is- isa isc isd ise isg isi iss saa sac sad sae sag sai sas sca scc scd sce scg sci scs sda sdc sdd sde sdg sdi sds se- sea sec sed see seg sei ses sga sgc sgd sge sgg sgi sgs sia sic sid sie sig sii sis ss- ssa ssc ssd sse ssg ssi sss