#include <fstream>

using namespace std;
ifstream f("scmax.in");
ofstream g("scmax.out");
int i,n,Max,p,j,a[100005],l[100005],lmax,ult;
int main()
{f>>n;
for(i=1;i<=n;i++) f>>a[i];
l[n]=1;
lmax=0;
for(i=n-1;i>=1;i--)
{
    Max=0;
    for(j=i+1;j<=n;j++)
        if(a[j]>a[i] && Max<l[j])
        Max=l[j];
    l[i]=Max+1;
    l[i]=Max+1;
    if(lmax<l[i])
    {
        lmax=l[i];
        p=i;
    }
}
g<<lmax<<'\n';
ult=a[p]-1;
for(i=p;i<=n;i++)
    if(a[i]>ult && l[i]==lmax)
{
    g<<a[i]<<" ";
    ult=a[i];
    lmax--;
}
    return 0;
}