cccc ccee ccgc ccgt ccoc cctc cctt cec- cece ceco cect ceec cege cego cet- cete ceto cgcc cgcg coce coco coct cogo coot cotc cote coto cott ctec ctge ctot eccc ecce ecco ecct eco- ecog ecot ect- ectc ecto eeee eeoc eetc eete egcc egcg egec egee egge eggo ego- egot egte eotc eoto etcc etco etec etee etoe ette etto gc-c gccc gcet gctc gece geet gege gegg gego geo- geog gete getg geto gett gggg goce gogo goog goot gote goto gott gtco gtoe o-eo occc occt oce ocee ocet oct- octe octo oec- oecc oeec ogee ogge ogog oooo otee oto- otoe otog otoo otte otto tccc tctc teco tect teec teet tegg tego tegt tete teto tett tgcc tgtc toce toco toee toet toge togo togt toot totc tote toto tott tteo ttoe tttt