#include <bits/stdc++.h>

using namespace std;

int main()
{
  int N, Level[6] = {};
  cin >> N;
  while(N--) {
    int L;
    cin >> L;
    Level[6 - L]++;
  }
  cout << 6 - (max_element(begin(Level), end(Level)) - Level) << endl;
}