a-a a-c aaa aac aae aag aan aao ac- aca acc ace acg acn aco aea aec aee aeg aen aeo ag- aga agc age agg agn ago an- ana anc ane ang ann ano aoa aoc aoe aog aon aoo c-- caa cac cae cag can cao cca ccc cce ccg ccn cco ce- cea cec cee ceg cen ceo cga cgc cge cgg cgn cgo cn- cna cnc cne cng cnn cno co- coa coc coe cog con coo eaa eac eae eag ean eao ec- eca ecc ece ecg ecn eco eea eec eee eeg een eeo ega egc ege egg egn ego en- ena enc ene eng enn eno eo- eoa eoc eoe eog eon eoo gaa gac gae gag gan gao gca gcc gce gcg gcn gco ge- gea gec gee geg gen geo gga ggc ggg ggn ggo gna gnc gne gnn gno goa goc goe gog gon goo naa nac nae nag nan nao nca ncc nce ncg ncn nco ne- nea nec nee neg nen neo nga ngc nge ngg ngn ngo nna nnc nne nng nnn nno no- noa noc noe nog non noo oaa oac oae oag oan oao oc- oca occ ocg ocn oco oea oec oee oeg oen oeo oga ogc oge ogg ogn ogo on- ona onc one ong onn ono oo- ooa ooc oog oon ooo