Usando ciclo While en C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace While
{
    class Program
    {
        static void Main(string[] args)
        {
            Int32 num;
            Int32 x=1;
            Console.WriteLine(“Inserte un numero: “);
            num=Int32.Parse(Console.ReadLine());
            while (x < 11)
            {
            Console.WriteLine(num+”X”+x+”=” +num*x);
            x++;
            }
            Console.ReadLine();
        }
    }
}