LongestSeq.cs

namespace Program
{
    using System;
    using System.Collections.Generic;

    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = { 1, 8, 3, 17, 22, 33 };
            List<int> seq = new List<int>();

            for (int i = 0; i < arr.Length; i++)
            {
                List<int> tempList = new List<int>() { arr[i] };
                for (int j = i + 1; j < arr.Length; j++)
                {
                    if (arr[j] > arr[j - 1])
                    {
                        tempList.Add(arr[j]);
                    }
                    else
                    {
                        break;
                    }
                }

                if (tempList.Count > seq.Count)
                {
                    seq.Clear();
                    seq.AddRange(tempList);
                }
            }

            Console.WriteLine(string.Join(", ", seq));
        }
    }
}