#include <iostream>
#include <fstream>

using namespace std;

ifstream fin("scmax.in");
ofstream fout("scmax.out");

int n;
int DP[100005], X[100005];
int Max;
int tt[100005];

void Read()
{
    fin >> n;
    for(int i = 1; i <= n; i ++)
        fin >> X[i];
}

void Solve()
{
    DP[n] = 1;
    tt[n] = 0;
    for(int i = n - 1; i >= 1; i --)
    {
        int max = 0;
        for(int j = i + 1; j <= n && X[j] > X[i]; j ++)
            if(DP[j] > max)
            {
                max = DP[j];
                tt[i] = j;
            }
        DP[i] = max + 1;
    }
}

void Print()
{
    Max = 0;
    int r;
    for(int i = 1; i <= n; i ++)
        if(DP[i] > Max)
        {
            Max = DP[i];
            r = i;
        }
    fout << Max << '\n';
    int k = r;
    while(k)
    {
        fout << X[k] << " ";
        k = tt[k];
    }
}

int main()
{
    Read();
    Solve();
    Print();
}