#include <fstream>

using namespace std;
ifstream fin("scmax.in");
ofstream fout("scmax.out");
int a[100001],b[100001],i,n,maxx,poz,j;
int main()
{
    fin>>n;
    for(i=1;i<=n;i++)
        fin>>a[i];
    b[n]=1;
    for(i=n-1;i>=1;i--)
    {
        maxx=0;
        for(j=i+1;j<=n;j++)
        {
            if(a[j]>a[i])
                if(b[j]>maxx)
                    maxx=b[j];
        }
        b[i]=maxx+1;
    }
    maxx=0;
    poz=1;
    for(i=1;i<=n;i++)
        if(b[i]>maxx)
            maxx=b[i],poz=i;
    fout<<maxx<<'\n';
    for(i=poz;i<=n;i++)
    {
        if(maxx==b[i] && a[i]>=a[poz])
        {
            maxx--;
            fout<<a[i]<<" ";
        }
    }
    return 0;
}