#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  string s, ans;
  cin >> s;
  ans = s;
  s += s;
  for (int k = 0; k < 10; k++) {
    for (int i = 0; i < s.length(); i++) {
      s[i]++;
      if (s[i] > '9') s[i] = '0';
    }
    for (int i = 0; i < n; i++) {
      ans = min(ans, s.substr(i, n));
    }
  }
  cout << ans << endl;
  return 0;
}
