#include <iostream>
#include <fstream>
using namespace std;

ifstream f("scmax.in");
ofstream g("scmax.out");
int a[100],n,lungime[100];

void citire(int a[100],int &n)
{
    f>>n;
    for(int i=1;i<=n;i++)f>>a[i];
}

int exista_numere(int a[100],int n,int i,int j,int nr)
{
    for(;i<=j&&i<=n;i++)
        if(a[i]==nr)return 0;
    return 1;
}

void cautare_subsir(int a[100],int n,int lungime[100])
{
    int i,j,maxim=0,poz;
    lungime[n]=1;
    for(i=n-1;i>0;i--)
        for(j=i+1;j<=n;j++)
            if(a[j]>a[i])lungime[i]++;
    for(i=1;i<=n;i++)
       if(lungime[i]>maxim){maxim=lungime[i];poz=i;}
    g<<maxim<<endl;g<<a[poz]<<' ';
    for(i=poz+1;i<=n;i++)
         if(a[i]>a[poz]&&exista_numere(a,n,poz,i-1,a[i])==1)
               g<<a[i]<<' ';
}

int main()
{
    citire(a,n);
    cautare_subsir(a,n,lungime);
    return 0;
}