#include <iostream>
#include <vector>
#include <algorithm>
#include <functional>
#include <queue>
#include <map>
#include <cmath>
#include <iomanip>

using namespace std;

const long long MOD = (long long)(1e9) + 7;

int main() {

  //cout << fixed << setprecision(15);

  int n;
  cin >> n;
  string ans;
  for (int i = 1; i <= 9; i++) {
    int c;
    cin >> c;
    for (int j = 0; j < c; j++) {
      ans += to_string(i);
    }
  }
  sort(ans.begin() , ans.end());
  reverse(ans.begin() , ans.end());
  cout << ans << endl;
  return 0;
}