#include <fstream>
#include<iostream>
using namespace std;
ifstream f("scmax.in");
ofstream g("scmax.out");
int a[100],l[100],n,m,i,k,t,mx,mmax=0;
int main()
{
    f>>n;
    for(i=1;i<=n;i++)
        f>>a[i];
        l[n]=1;
     for(k=n-1;k>0;k--)
     {
         mx=0;
         for(i=k+1;i<=n;i++)
            if(a[i]>a[k] && l[i]>mx)
            mx=l[i];
         l[k]=mx+1;
         if(l[k]>mmax)
         {
             mmax=l[k];
             t=k;
         }
     }
     g<<mmax;
     g<<endl<<a[t]<<" ";
     for(i=t+1;i<=n;i++)
        if(a[i]>a[t] && (l[i]==mmax-1))
        {g<<a[i]<<" ";
     mmax--;}
    return 0;
}