Having problem with matrices in web service

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C#5.0

I'm trying to count non odd numbers in web service matrices.
At the service I made the following method while web services don't support multidimensional arrays, so I have had to make it as a jagged array;

[WebMethod]
        public int AnetaretCift(int [][]cift)
        {
            int [][] matrica = new int [3][];
           int nrcift = 0;
            for (int i = 0; i < matrica.GetLength(0); i++)
            {
                for (int j = 0; j < matrica.GetLength(1); j++)
                {
                    if (matrica[i][j]%2==0)
                    {
                        matrica[i][j]++;
                    }
                    nrcift = matrica[i][j];
                }
            }
            return nrcift;
        }

By the consumer i wrote the following code:

static void Main(string[] args)
      {
          int[][] matrica = new int[3][];
          matrica[0] = new int[3] { 1, 7, 8 };
          matrica[1] = new int[3] { -4, 2, 5 };
          matrica[2] = new int[3] { 4, 5, -3 };
          //{{3, 5, 7},
            //                {4, 6, 2},
              //              {1, 6, -4}};
          referenca.Service1 sherbimi = new referenca.Service1();
          Console.WriteLine("Anetaret cift të matrices jane: " + sherbimi.AnetaretCift(matrica));
          Console.ReadLine();

      }

This code doesn't works by me. If anyone knows how to fix this or what argument I have to give to the web method.
Thank you in advance for your reply.
Cheers.