using static System.Console;

​

public class Program {

    public static void Main() => WriteLine(new Cores(80, 20, 160));

}

​

struct Cores {

    public byte R { get; }

    public byte G { get; }

    public byte B { get; }

    public Cores(byte r, byte g, byte b) {

        R = r;

        G = g;

        B = b;

    }

    public override string ToString() => $"{R}, {G}, {B}";

}