#include <fstream>
#include <cstring>
using namespace std;
ifstream fin("subsir2.in");
ofstream fout("subsir2.out");
#define DIM 100001
 
int L[DIM], ANT[DIM], SOL[DIM], SF[DIM];
 
int n, a[DIM];
 
int main()
{
    int smin = 1000000, i, j,poz,k,ok;
    fin >> n;
    for ( i = 0; i < n; ++i )
        fin >> a[i];
	for ( i = 0; i < n; ++i ){  ANT[i]=-1; SF[i]=1;}
    for ( i = 0; i < n; ++i )
    {
        L[i] = 1;
        for ( j = 0; j < i; ++j )
            { if ( L[j] + 1 > L[i] && a[i] > a[j] )
                { L[i] = L[j] + 1;
			      ANT[i]=j;
				}
			if(a[i] > a[j])	SF[j]=0;
			}	
    }
	/*for ( i = 0; i < n; ++i ) fout<<L[i]<<" ";
	fout<<endl;
	for ( i = 0; i < n; ++i ) fout<<ANT[i]<<" ";
	fout<<endl;
	for ( i = 0; i < n; ++i ) fout<<SF[i]<<" ";
	fout<<endl;*/
    for ( i = 0; i < n; ++i )
        if ( smin > L[i] && SF[i]==1 )
        {   ok=1;
			for(k=i+1;k<n;k++) if(ANT[k]==i) ok=0;
			if(ok)
			{ smin = L[i];
		      poz=i;
			}
		}
    fout <<  smin<<endl;
	i=poz;
	k=0;
	while(ANT[i]!=-1)
	{
		SOL[k]=i+1; k++;
		i=ANT[i];
	}
	SOL[k]=i+1;
	for(i=k;i>=0;i--) fout<<SOL[i]<<" ";
	fin.close();
    fout.close();
    return 0;
}