#include <fstream>

using namespace std.;
ifstream f ("scmax.in");
ofstream g ("scmax.out");
int a[1002],b[1002],M,Max,i,p,j,v[1002],n;
int main()
{
    f>>n;
    for(i=1;i<=n;i++)
        f>>v[i];
        a[n]=1;
        M=0;
    for(i=n-1;i>=1;i--)
    {
        Max=0;
        for(j=i+1;j<=n;j++)
            if(v[i]<v[j]&&a[j]>Max)
        {
            Max=a[j];
            b[j]=j;
        }
        a[i]=Max+1;
        if(a[i]>M)
        {
            M=a[i];
            p=i;
        }
    }
    g<<M;
    g<<'\n'<<v[p]<<" ";
    M--;
    for(i=p+1;i<=n;i++)
        if(v[i]>v[p]&&a[i]==M)
    {
        g<<v[i]<<" ";
        p=i;
        M--;
    }
    return 0;
}