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

int main(void) {
  int N;
  cin >> N;
  vector<int> c(9);
  for (int i = 0; i < 9; i++) cin >> c[i];
  for (int i = 8; i >= 0; i--) {
    for (int j = 0; j < c[i]; j++) {
      cout << i + 1;
    }
  }
  cout << endl;
  return 0;
}