interface(shift)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication11
{
    interface left
    {
        char[] shift();
    }

    interface right
    {
        char[] shift();
    }

    class MyClass:right, left
    {
        char[] m;
        public MyClass(char[] ar)
        {
            m = new char[ar.Length];
            m = ar;
        }

        char[] left.shift()
        {
            char item = m[0];
            char[] nc = new char[m.Length];
            for (int i = 1; i < m.Length; i++)
                nc[i - 1] = m[i];
            nc[m.Length - 1] = item;
            return nc;
        }

        char[] right.shift()
        {
            char item = m[m.Length - 1];
            char[] nc = new char[m.Length];
            for (int i = m.Length - 1; i > 0; i--)
                nc[i] = m[i - 1];
            nc[0] = item;
            return nc;
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            MyClass arr = new MyClass(new char[]{ '0', '1', '2'});
            left l = arr;
            right r = arr;
            Console.WriteLine(l.shift());
            Console.WriteLine(r.shift());
        }
    }
}