public class Switch1 {
	public static void main(String[] argv) {
		System.out.println(one(Color.R));
		System.out.println(one(Color.G));
		System.out.println(one(Color.B));
		System.out.println(one(Color.Y));
	}

	public static int one(Color color) {
		int result = switch (color) {
			case R -> 0;
			case G -> {
				int number4 = 8 / 2;
				yield number4 /4;
			}
			case B -> 2;
			default -> 3;
		};
		return result;
	}
}

enum Color {
	R, G, B, Y;
}