#include <fstream>
#define lmax 5001
#define inf 10000000

using namespace std;

ifstream f("subsir2.in");
ofstream g("subsir2.out");

long long i,j,n,mi=inf,mii,ma,maa=inf,poz,pozprec,nr;
long long a[lmax],b[lmax],urm[lmax];

int main()
{
    f>>n;

    for (i=1;i<=n;i++)
     {
        f>>a[i];
        if (a[i]<mi)
         {
             mi=a[i];
             poz=i;
         }
     }

     for (i=n;i>=1;i--)
     {
        mi=inf;
        b[i]=inf;
        urm[i]=-1;

        for (j=i+1;j<=n;j++)
          {
           if (a[i]<=a[j])
              if (a[j]<mi && (b[i]>b[j]+1 || (b[i]==b[j]+1 && a[j]<a[urm[i]])))
                {
                    urm[i]=j;
                    b[i]=b[j]+1;

                 if (a[j]<mi)
                   mi=a[j];
                }

            }
           if (b[i]==inf)
            {
                b[i]=1;
                urm[i]=i;
            }
    }

     g<<b[poz]<<'\n';

      while (1)
       {
           g<<poz<<" ";

          if (urm[poz]==poz)
            break;
          poz=urm[poz];
       }


    f.close();
    g.close();
}