using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Learn1
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] array = {0,1,2,3,4,5,6,7,8,9};
            Shuffle(array);
        }
        static void Shuffle(int[] array)
        {
            Random rand = new Random();
            for (int i = array.Length - 1;i >= 1;i--)
            {
                int j = rand.Next(i + 1);
                int tmp = array[j];
                array[j] = array[i];
                array[i] = tmp;
            }
            for (int i = 0; i < array.Length; i++)
            {
                Console.Write(array[i]);
            }
        }
    }
}