-ic a-a a-c a-i aaa aac aad aae aag aai aan ac- aca acc acd ace acg aci acn ad- ada adc add ade adg adi adn aea aec aed aee aeg aei aen ag- aga agc agd age agg agi agn ai- aia aic aid aie aig aii ain an- ana anc and ane ang ani ann c-- caa cac cad cae cag cai can cca ccc ccd cce ccg cci ccn cda cdc cdd cde cdg cdi cdn ce- cea cec ced cee ceg cei cen cga cgc cgd cge cgg cgi cgn ci- cia cic cid cie cig cii cin cn- cna cnc cnd cne cng cni cnn daa dac dad dae dag dai dan dca dcc dcd dce dcg dci dcn dda ddc ddd dde ddg ddi ddn de- dea dec ded dee deg dei den dga dgc dgd dge dgg dgi dgn di- dia dic did die dig dii din dna dnc dnd dne dng dni dnn eaa eac ead eae eag eai ean ec- eca ecc ecd ece ecg eci ecn ed- eda edc edd ede edg edi edn eea eec eed eee eeg een ega egc egd ege egg egi egn eia eic eid eie eig eii ein en- ena enc end ene eng eni enn g-d gaa gac gad gae gag gai gan gca gcc gcd gce gcg gci gcn gda gdc gdd gde gdi gdn ge- gea gec ged gee geg gei gen gga ggc ggd ggg ggi ggn gia gic gid gie gig gii gin gna gnc gnd gne gni gnn i-d ia- iaa iac iad iae iag iai ian ica icc icd ice icg ici icn ida idc idd ide idg idi idn ie- iea iec ied iee ieg iei ien iga igc igd ige igg igi ign iia iic iid iie iii iin in- ina inc ind ine ing ini inn n-i naa nac nad nae nag nai nan nca ncc ncd nce ncg nci ncn nda ndc ndd nde ndg ndi ndn ne- nea nec ned nee neg nei nen nga ngc ngd nge ngg ngi ngn nia nic nid nie nig nii nin nna nnc nne nng nni nnn