What are the numbers in the immediate left and right in the game roulette?

You are going to have to be more specific as to where on the layout you are referring. The game of roulette has 36 numbers plus 0 and 00. Immediate right and left of where? The wheel? The dealer? The player? The first dozen numbers? See what I mean? Also, if you're talking about the layout of the wheel, you'll have to state whether you mean a European wheel or an American wheel.