LiS2

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace LIS2
{
    class Program
    {
        public static void Main()
        {
            List<int> sequence = Console.ReadLine().Split().Select(int.Parse).ToList();
            int[] len = new int[sequence.Count];
            int[] prev = new int[sequence.Count];
            List<int> longestSeq = FindLongestIncreasingSubsequence(sequence, len, prev);
            Console.WriteLine( string.Join(" ", longestSeq));

        }

        public static List<int> FindLongestIncreasingSubsequence(List<int> sequence, int[] len, int[] prev)
        {
            int maxLen = 0;
            int maxIndex = 0;

            for (int current = 0; current < sequence.Count; current++)
            {
                len[current] = 1;
                prev[current] = -1;
                for (int i = 0; i < current; i++)
                {
                    if (sequence[current] > sequence[i] && len[i] + 1 >len[current])
                    {
                        len[current] = len[i] + 1;
                        prev[current] = i;
                    }
                }

                if (len[current] > maxLen)
                {
                    maxLen = len[current];
                    maxIndex = current;
                }
            }

            List<int> lis = new List<int>();
            while (maxIndex != -1)
            {
                lis.Add(sequence[maxIndex]);
                maxIndex = prev[maxIndex];
            }

            lis.Reverse();
            return lis;
        }
    }
}