using System;

using System.Linq;  

​

public class Program

{

    public static void Main()

    {

        int[,] array = new int[2, 2];

            array[0, 0] = 1;

            array[0, 1] = 2;

            array[1, 0] = 2;

            array[1, 1] = 1;

        int x = 2;

        Console.WriteLine(array.OfType<int>().Count(y=>y==x));

    }

}