using System;

public class Program

{

    public static void Main()

    {

        char[] chars = { 'a', 'b', 'c' };

        for (int pos = 0; pos < (chars.Length / 2); pos++)

        {

            int posToReplace = chars.Length - 1 - pos;

            char temp = chars[pos];

            chars[pos] = chars[posToReplace];

            chars[posToReplace] = temp;

        }

        foreach (var character in chars)

        {

            Console.WriteLine(character);

        }

    }

}