using System;

public class Program

{

    // Richard's auto assign engine grouping algorithm

    // - if odd number of engines we will have a L,C,R (except with 1 engine which will only have a C)

    // - when even number of engines the first half (starting from 0) will be considered as left, the rest right

    static void assign(int ne)

    {

        var midpoint = (int)(ne / 2.0);

        var odd = (ne & 1) == 1;

        System.Console.WriteLine("Test {0} engines, {1} odd {2}", ne, midpoint, odd);

​

        for (var eng = 0; eng < ne; eng++)

        {

            var pos = "center";

            if (eng == midpoint && odd)

                pos = "Center";

            else if (eng >= midpoint)

                pos = "Right";

            else

                pos = "Left";

            System.Console.WriteLine("Engine {0} {1}", eng, pos);

        }

        System.Console.WriteLine("----------------\n");

    }

​

    public static void Main()

    {

        for (var e = 1; e <= 8; e++)

            assign(e);

    }

}