#include <iostream>
#include <fstream>
#include <cstdio>
using namespace std;

int a[100005];
int L[100005];

int main()
{
    //ifstream cin("scmax.in");
    //ofstream cout("scmax.out");
    freopen("scmax.in", "r", stdin);
    freopen("scmax.out", "w", stdout);

    int i, j, n, t;

    //cin >> n;
    scanf("%d", &n);
    for (i = 1; i <= n; i++)
        //cin >> a[i];
        scanf("%d", &a[i]);

    t = n;
    for (i = n; i >= 1; i--)
    {
        L[i] = 0;
        for (j = i + 1; j <= n; j++)
            if (a[j] > a[i] && L[j] > L[i])
                L[i] = L[j];
        L[i]++;

        if (L[i] > L[t])
            t = i;
    }

    //cout << L[t] << '\n';
    printf("%d\n", L[t]);

    for (i = t + 1; i <= n; i++)
    {
        if (a[i] > a[t] && L[i] == L[t] - 1)
        {
            //cout << a[t] << ' ';
            printf("%d ", a[t]);
            t = i;
        }
    }
    //cout << a[t];
    printf("%d", a[t]);
    return 0;
}