#include <iostream>
#include <fstream>
using namespace std;
ifstream in("scmax.in");
ofstream out("scmax.out");
long long l[200000000],a[20000000],ml,pl,n,poz[200000000],i,j;
void citire()
{
    in>>n;
    for(i=1;i<=n;i++)
        in>>a[i];
}
int main()
{
    citire();
    l[n]=1; poz[n]=0;
    for(i=n-1;i>=1;i--)
    {
        ml=0; pl=0;
        for(j=i+1;j<=n;j++)
            if(l[j]>ml)
            {
                ml=l[j];
                pl=j;
            }
        l[i]=i+ml; poz[i]=pl;
    }
    ml=0; pl=0;
    for(i=1;i<=n;i++)
        if(ml<l[i])
        {
            ml=l[i];
            pl=i;
        }
    out<<pl<<'\n';
    for(i=pl;i!=0;i=poz[i])
        out<<a[i]<<' ';
    in.close();
    out.close();
    return 0;
}