#include <bits/stdc++.h>
using namespace std;
int main(){
  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;
}