using System using System Collections Generic using System Linq using

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

namespace ConsoleApplication1
{
    class intList
    {
        int[] M;
        int count = 0;
        int Capacity;
        const int defaultCapacity = 10;
        public intList (int a)
        {
            this.M = new int[a];
            Capacity = a;
        }
        public void add(int a)
        {
            this.M[count] = a;
            this.count++;
        }
        public void addrange(int[] a)
        {
            for (int i = 0; i < a.Length; i++)
            {
                this.M[count] = a[i];
                count++;
            }
        }
        public void clear()
        {
            for (int i = Capacity; i >= 0; i++)
            {
                this.M[i] = 0;
            }
        }
        public bool Contains(int a)
        {
            bool b = false;
            for (int i = 0; i < count; i++)
            {
                if (this.M[i] == a)
                {
                    b = true;
                }
            }
            return b;
        }
        public void CopyTo(intList a)
        {
            this.M = a.M;
            this.count = a.count;
        }
        public System.Collections.IEnumerator GetEnumerator()
        {
            for (int i = 0; i < this.count; i++)
            {
                yield return M[i];
            }
        }
        public static intList operator <<(intList a, int b)
        {
            intList qwe = new intList(a.count);
            for (int i = 0; i < a.count - b; i++)
            {
                qwe.M[i] = a.M[i + b];
            }
            for (int i = a.count - b; i < a.count; i++)
            {
                qwe.M[i] = a.M[i + b - a.count];
            }
            return qwe;
        }
        public int this[int i]
        {
            get { return M[i]; }
            set {M[i] = value;}

        }



    }
    class Program
    {
        static void Main(string[] args)
        {
            intList IL = new intList(10);
            IL.add(1);
            IL.add(2);
            IL.add(3);
            IL.add(4);
            IL.add(5);
            IL.addrange(new int[] { 6, 7, 8, 9 });
            for (int i = 0; i < 9; i++)
            {
                Console.Write(" {0}", IL[i]);
            }
            Console.WriteLine();
            IL = IL << 7;
            for (int i = 0; i < 9; i++)
            {
                Console.Write(" {0}", IL[i]);
            }
            Console.WriteLine();
        }
    }
}