#include<fstream>
#include<iostream>
using namespace std;
ifstream fin("scmax.in");
    ifstream fout("scmax.out");
int v[100005], d[100005], p[100005], n, k;

int main()
{
fin>>n;
for (int i=1;i<=n;i++) fin>>v[i];
int i, j, max, max2=n, poz;
d[n]=1;
p[n]=0;
for (i=n-1; i>=1; i--)
{
poz=0; max=0;
for (j=i+1; j<=n; j++)
if (v[i]<v[j] && d[j]>max)
{
max=d[j];
poz=j;
}
d[i]=1+max;
p[i]=poz;
if (d[i]>d[max2]) max2=i;
}
cout<<"Lungimea maxima este : "<<d[max2]<<endl;
while (max2>0)
{
cout<<v[max2]<<" ";
max2=p[max2];
}
return 0;
}