using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

                public static void Main()

                {

                                string stringNum = "10-9-8-7-6";

                                //string stringNum = "1-2-3-4-5";

                                //string stringNum = "7-5-5-5-7";

                                List<string> names = stringNum.Split('-').ToList<string>();

                                int [] numbers = names.Select(int.Parse).ToArray();

​

                                if (IsIncrementByOne(numbers) == true || 

                                                IsDecrementByOne(numbers) == true

                                   )

                                {

                                                Console.WriteLine("ARRAY IS CONSECUTIVE : true");

                                }

                                else

                                {

                                                Console.WriteLine("ARRAY IS CONSECUTIVE : false");

                                }

                }

​

                public static bool IsIncrementByOne( int[] numbers)

                {

                                //string result = "";

                                bool status = true;

                                int num = numbers[0];

                                int i = 0;

​

         for ( i = 0; i < 5; i++,num++) 

                                 {

                                                if( numbers[i] == num) 

                                                {

                                                                Console.WriteLine(numbers[i] + " = " + num);

                                                }

                                                else

                                                {

                                                                Console.WriteLine(numbers[i] + " != " + num);

                                                                status = false;

                                                                break;

                                                }

         }

                                if(status == true)

                                {

                                                Console.WriteLine("Numbers are Incrimenting By One");

                                }

                                return status;

                }

                public static bool IsDecrementByOne( int[] numbers)

                {

                                //string result = "";

                                bool status = true;

                                int num = numbers[0];

                                int i = 0;

         for ( i = 0; i < 5; i++,num--)

                                {

                                                if( numbers[i] == num) 

                                                {

                                                                Console.WriteLine(numbers[i] + " = " + num);

                                                }

                                                else

                                                {

                                                                Console.WriteLine(numbers[i] + " != " + num);

                                                                status = false;

                                                                break;

                                                }

         }

                                if(status == true)

                                {

                                                Console.WriteLine("Numbers are Decrementing By One");

                                }

                                return status;

                }

}

​