#include <fstream>
#define Nmax 100005
using namespace std;
int n, i, j, p, maxx, v[Nmax], lu[Nmax];
int main()
{
    ifstream f("scmax.in");
    ofstream g("scmax.out");
    f >> n;
    for(i = 1; i <= n; ++ i)
        f >> v[i];
    lu[n] = 1;
    for(i = n - 1; i > 0; i --)
    {
        maxx = 0;
        for(j = i + 1; j <= n; j ++)
            if(v[j] > v[i] && lu[j] > maxx)
            maxx = lu[j];
        lu[i] = maxx + 1;
    }
    maxx = 0;
    for(i = 1; i <= n; ++ i)
        if(maxx < lu[i]) maxx = lu[i], p = i;
    g << maxx << "\n";
    g << v[p] << " ";
    for(i = p + 1; i <= n; ++ i)
        if(v[i] > v[p] && lu[i] == maxx - 1)
          {
              g << v[i] << " ";
              maxx --;
          }
    return 0;
}