using System;

public class Program

{

    public static void Main()

    {

        int[] numbers = {5,2,14,-17,99,100,24,26,11,9,16,29,900,7,45,4};

        int newLen = 0;

        int firstEmpty = -1;

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

        {

            if(Math.Abs(numbers[i])%2 > 0)

            {

                if(firstEmpty == -1)

                {

                    firstEmpty = i; 

                }

                //if you want to eliminate odd from the original array (post newLen), you can set numbers[i] to "null" here

            }

            else

            {

                newLen++;

                if(firstEmpty > -1)

                {

                    numbers[firstEmpty] = numbers[i];

                    firstEmpty++;

                }

                //here you're "swapping" with the first empty position, but it's not technically necessary.  You can do it to eliminate the duplicate even number from the original array (post newLen)

            }

        }

        for(int i=0; i<newLen;i++)

        {

            Console.Write(numbers[i].ToString() + " ")  ;

        }

    }

}