Blackone

// Main.cs created with MonoDevelop
// Jeffrey
//
// To change standard headers go to Edit->Preferences->Coding->Standard Headers
//
using System;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;

namespace JollyJumpers
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            try
            {
                StreamReader inFile = new StreamReader("input.in");
                StreamWriter outFile = new StreamWriter("output.out");
                MatchCollection matches = Regex.Matches(inFile.ReadLine(), @"\d+");
                int quantity;
                int[] numbers;
                int[] results;

                while(!inFile.EndOfStream)
                {
                    quantity = Convert.ToInt32(matches[0].ToString());
                    numbers = new int[quantity];
                    results = new int[quantity-1];
                    bool flag = true;

                    for(int i=0; i < quantity; i++)
                        numbers[i] = Convert.ToInt32(matches[i+1].ToString());

                    for(int i=0; i < quantity-1; i++)
                        results[i] = Math.Abs(numbers[i] - numbers[i+1]);

                    for(int i=0; i < quantity-2; i++)
                    {
                        if(Math.Abs(results[i] - results[i+1]) != 1)
                        {
                            flag = false;
                            break;
                        }
                    }

                    if(flag)
                        outFile.WriteLine("Jolly");
                    else
                        outFile.WriteLine("Not Jolly");

                    matches = Regex.Matches(inFile.ReadLine(), @"\d+");

                    numbers = null;
                    results = null;
                }
                Console.Write("Finishing the Program");
                Console.Read();
                inFile.Close();
                outFile.Close();

            }
            catch(System.IO.FileNotFoundException)
            {
                Console.WriteLine("File does not exist");
                Console.Read();
            }
            catch
            {
                Console.WriteLine("Something Unexpected happened");
                Console.Read();
            }

        }
    }
}