#include <bits/stdc++.h>
using namespace std;

int lscmax, lmax, pozmax,elemmax, n, x, k, maxim, dp[100005];
int V[100005];
vector <int> F;

void fast ()
{
    ios_base::sync_with_stdio(false);
    cin.tie();
}

int main()
{
    fast();
    freopen("scmax.in","r", stdin);
    freopen("scmax.out","w", stdout);

    cin >> n;

    for (int i=1; i<=n; i++)
    {
        cin >> x;
        V[i]=x;
    }

    /// cazul de baza
    dp[1]=1;

    for (int i=2; i<=n; i++)
    {
        for (int j=1; j<i; j++)
        {
            if (V[j]<V[i])
            {
                maxim = max (maxim, dp[j]);

            }
        }
        /// dp[i] cel mai lung subsir care se termina in elementul i; incep dp[2]
        dp[i] = maxim + 1;
        if (dp[i]>lmax)
        {
            lmax=dp[i];
            pozmax=i;
            elemmax=V[i];
        }
    }

    F.push_back(elemmax);

    lscmax=dp[n];
    cout << lscmax << endl;

    for (int i=pozmax; i>=1; i--)
        if (elemmax>V[i-1] && lscmax>1)
        {
            F.push_back(V[i-1]);
            lscmax--;
            elemmax=V[i-1];
        }


    for (int i=(int)F.size()-1; i>=0; i--)
        cout << F[i] << " ";


    return 0;
}