using System;

public class Program

{

    public static void Main()

    {

        int[] a = { 2, 4, 6, 5, 3, 1, 7, 9, 10, 8 };

                    Array.Sort(a);

​

                    int index = 0; int[] data = new int[5];

                    for (int i = 0; i < a.Length; i++)

                    {

                        bool genap = false;

                        if (a[i] % 2 == 0)

                            genap = true;

​

                        if (genap)

                        {

                            data[index] = a[i];

                            index++;

                        }

                    }

                    if (data != null && data.Length > 0)

                    {

                        int lenght = 0;

                        for (int t = 0; t < data.Length; t++)

                        {

                            string data_show = string.Empty;

                            for (int i = 0; i < data.Length- lenght; i++)

                            {

                                if (i == data.Length - lenght -1)

                                {

                                    data_show += data[i].ToString();

                                }

                                else

                                {

                                    data_show += data[i].ToString() + ",";

                                }                               

                            }

                            lenght ++;

                            Console.WriteLine(data_show);

                        }

                    }

    }

}