int[] arr = { 3, 2, -2, -1, 0};
        for (int i = 0; i < arr.Length; i++)
        {
            if (arr[i] != 0)
            {
                if (arr[i] % 2 == 0)
                {
                    Console.WriteLine("Even:{0}", arr[i]);
                }
                else
                {
                    Console.WriteLine("Odd: {0}", arr[i]);
                }
            }
            else
            {
                Console.WriteLine("Is not odd or even:{0}", arr[i]);
            }


        }