#include <fstream>

using namespace std;
ifstream cin("scmax.in");
ofstream cout("scmax.out");

int v[100000], d[100000];
int main()
{
     int n, i, j, maxx, t;
    cin>>n;
    for (i=1; i<=n; i++)
        cin>>v[i];
    d[n]=1;
    for (j=n-1; j>=1; j--)
    {
        maxx=0;
        for (i=j+1; i<=n; i++)
            if (v[i]>v[j] && d[i]>maxx)
                maxx=d[i];
        d[j]=1+maxx;
    }
    maxx=d[1];
    t=1;
    for (j=1; j<=n; j++)
        if (d[j]>maxx)
        {
            maxx=d[j];
            t=j;
        }
    cout<<maxx<<'\n'<<v[t]<<' ';
    for (i=t+1; i<=n; i++)
        if (v[i]>v[t] && d[i]==maxx-1)
        {
            cout<<v[i]<<' ';
            maxx--;
        }
}