//
//  main.cpp
//  scmax++++
//
//  Created by Catalina Brinza on 10/19/13.
//  Copyright (c) 2013 Catalina Brinza. All rights reserved.
//

#include <iostream>
#include <fstream>
using namespace std;
int main()
{int n,i,j,x,k=0,l=0,kmax=0, v[100001],s[100001];
    ifstream f("scmax.in");
    ofstream g("scmax.out");
    f>>n;
    for (i=0;i<n;i++)
      f>>v[i];
    s[0]=1;
    for (i=1;i<n;i++)
    {s[i]=1;
        for (j=i-1;j>=0;j--)
            if (v[i]>v[j])
            { if (s[j]>=s[i]) s[i]=s[j]+1;
                k=j;
            }
        if (s[i]>l)
        {
            kmax=k;
           l=s[i];
        }
    }
    g<<l<<endl;
    x=v[kmax];
    g<<x<<' ';
    l--;
    for (i=kmax+1;i<n;i++)
    {
        if (v[i]>x) {
         g<<v[i]<<' ';
            l--;
            x=v[i];
        }
        if (l==0) break;
    }
    f.close();
    g.close();
    return 0;
}