LongestSeqOfEqualElements

using System;

public class Program
{
    public static void Main()
    {
        string inputArrayOne = Console.ReadLine();
        char[] delimiter = new char[]{',', ' '};
        string[] inputOne = inputArrayOne.Split(delimiter,StringSplitOptions.RemoveEmptyEntries);

        int[] arr = new int[inputOne.Length];
         for (int i = 0; i < inputOne.Length; i++)
         {
                arr[i] = int.Parse(inputOne[i]);
         }
            int counter = 0;
            int maxSequence = 0;
            int index = 0 ;

            for (int i = 0; i < arr.Length; i++)
            {
                counter = 0;
                int j = i;

                while (arr[i] == arr[j])
                {
                    counter++;
                    j++;
                    if (j >= arr.Length)
                    {
                        break;
                    }
                }

                if (counter > maxSequence)
                {
                    maxSequence = counter;
                    index = i;
                }
            }

            Console.WriteLine("The longest sequence is {0} elements long.", maxSequence);
            for (int i = index; i <= index+maxSequence - 1 ; i++)
            {
                if (i != index + maxSequence -1)
                {
                    Console.Write(arr[i] + ", ");
                }
                else
                {
                    Console.WriteLine(arr[i]);
                }
            }
        }

}