So I name it three methyl, one cycloxine. So three methyl simply means our methyl group is in the third carbon, and one cyclohexine means that my double bond is found on the first carbon, and we have a ring. So finally, we get to compound E. So in compound E, we have a cyclic six carbon backbone, and we have three double bonds. So let's begin labeling or numbering. And actually doesn't matter where we begin numbering or labeling because this is a symmetrical compound. So 123456.