help arrays 5

using System;

class IncreasingSequence
{
    static void Main()
    {

        int[] array = {  3, 2, 3, 4, 2, 4, 5, 6, 7 };
        int length = 0;
        int maxLength = 0;
        string sequence = null;
        string maxSequence = null;
        for (int i = 0; i < array.Length-1; i++)
        {

            if (array[i] < array[i + 1]&&i+1 != array.Length-1)
            {
                length++;
                sequence += array[i];


            }
            else if (length >= maxLength)
            {

                sequence +=array[i];
                if (array[i] < array[i + 1] && i + 1 == array.Length - 1)
                {
                    length++;
                    sequence += array[i + 1];
                }
                maxLength = length;
                maxSequence = sequence;
                sequence = null;
                length = 0;
            }

        }

        Console.WriteLine(maxSequence);

    }
}