#include <iostream>
#include <fstream>

using namespace std;

int main()
{
    int n,k,i,v[100001],g[100001],max=-99999999,f,j,x;
    ifstream q("scmax.in");
    ofstream w("scmax.out");
    q>>n;
    g[n]=1;
    for(i=1;i<=n;i++) q>>v[i];
    for(i=n-1;i>=1;i--)
    {
        g[i]=1;x=0;
        for(j=i+1;j<=n;j++)
        {
            if(v[i]<v[j]&&v[j]!=x) {g[i]++;x=v[j];}
            if(g[i]>max) {max=g[i];f=i;}
        }
    }
    w<<max<<endl;
    k=max;
    for(i=1;i<=n;i++)
    {
        if(i==f) {w<<v[i]<<" ";k--;}
        if(g[i]==k) {w<<v[i]<<" ";k--;}
    }

    return 0;
}