#include <cstdio>
#define MAX 100100
using namespace std;
int x[MAX],l[MAX];
int main()
{
    int n,i,j,lmax,poz;
    freopen("scmax.in","r",stdin);
    freopen("scmax.out","w",stdout);
    scanf("%d",&n);
    for(i=1;i<=n;++i)scanf("%d",x+i);
    l[n]=1;
    for(i=n-1;i>=1;--i)
    {
        lmax=0;
        for(j=i+1;j<=n;++j)
            if(x[j]>x[i] and l[j]>lmax)
                lmax=l[j];
        l[i]=1+lmax;

    }
    lmax=l[1];poz=1;
    for(i=2;i<=n;++i)
        if(l[i]>lmax)
        {
            lmax=l[i];
            poz=i;
        }
    printf("%d\n",lmax);
    printf("%d ",x[poz]);
    for(i=poz+1;i<=n;++i)
        if(x[i]>x[poz] and l[i]==lmax-1)
        {
            printf("%d ",x[i]);
            lmax--;
        }
    return 0;
}