撲克牌的隨機發牌程式

一個撲克牌遊戲（準確的說就是“鬥地主”），本來是打算取0-53的隨機數，取過的就做一個標識，迴圈直至全部完。但是細想一下，效率實在是太低了，最後決定用亂序的方式，感覺還不錯。不知道還有沒有更好的辦法，請大家多多指教！

using System;
using System.Collections;
namespace ConsoleApplication11
{
    /// <summary>
    /// RandomTEST 的摘要說明。
    /// </summary>
    public class RandomTest
    {        
        //0-12表示黑桃A到K;
        //13-25表示紅桃A到K;
        //26-38表示梅花A到K;
        //39-51表示方塊A到K;
        //52表示小鬼,53表示大鬼;
        public string man_a;
        public string man_b;
        public string man_c;
        public string remnant;
        private    int[] array = new int[]{0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53};
        //亂序演算法
        public void Random_Sequence()
        {
            int m,n;
            Random ram=new Random();
            for(int i=0;i<1000;i++)
            {
                m=ram.Next(0,54);
                n=ram.Next(0,54);
                if (m!=n)
                {
                    this.permute(m,n);
                }
            }
        }
        //兩個數置換
        public void permute(int a,int b)
        {
            array[a]=array[a]+array[b];
            array[b]=array[a]-array[b];
            array[a]=array[a]-array[b];
        }
        //發牌
        public void deal_cards()
        {
            for (int i=0;i<17;i++)
            {    
                man_a=man_a+" "+array[i*3].ToString();
                man_b=man_b+" "+array[i*3+1].ToString();
                man_c=man_c+" "+array[i*3+2].ToString();
            }
            remnant=array[51].ToString()+" "+array[52].ToString()+" "+array[53].ToString();
        }
    }
    public class GameStart
    {
        [STAThread]
        static void Main(string[] args)
        {
            RandomTest rt= new RandomTest();
            rt.Random_Sequence();
            rt.deal_cards();
            Console.WriteLine("玩家甲的牌型:"+rt.man_a.ToString());
            Console.WriteLine("玩家乙的牌型:"+rt.man_b.ToString());
            Console.WriteLine("玩家丙的牌型:"+rt.man_c.ToString());
            Console.WriteLine("剩餘的牌型:"+rt.remnant.ToString());
            Console.ReadLine();
        }
    }
}