#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
const int nmax = int(1e6) + 10;

bool check (ll x)
{
  return x % 10 == 6 or x % 10 == 8;
}
ll a[nmax], n, d = 0;
int main()  
{
  //freopen(task".inp" , "r" , stdin);
  //freopen(task".out" , "w" , stdout);

  ios::sync_with_stdio(false);
  cin.tie(0);
 
  cin >> n;
  for (ll i = 1; i <= n; ++i) cin >> a[i];
  for (ll i = 1; i <= n; ++i)
  {
    if (check(a[i])) d++;
  }
  cout << d << '\n';
  for (ll i = 1; i <= n; ++i)
  {
    if (check(a[i])) cout << a[i] << " ";
  }
  return 0;
}

\begin{array}{c} \color{lightblue}{\texttt{#Ileveledupalone}} \end{array}

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

int main() {
    int n;
    cin >> n;

    int count = 0;
    int b[1000000];

    for (int i = 0; i < n; ++i) {
        int num;
        cin >> num;
        if (num % 10 == 6 || num % 10 == 8) {
            b[count] = num;
            count++;
        }
    }

    cout << count << endl;
    for (int i = 0; i < count; ++i) {
        cout << b[i] << " ";
    }
    cout << endl;

    return 0;
}