#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  string str;
  cin >> n >> str;
  int sum = 0;
  bool flag = false;
  for (int i = 0; i < n - 1; i++) {
    sum += str[i] - 48;
    int ts = 0, ti = i + 1;
    while (ti < n && ts <= sum) {
      if (ts == sum && str[ti] != 48) {
        ts = 0;
      }
      ts += str[ti] - 48;
      ti++;
    }
    if (ti == n && ts == sum) {
      flag = true;
      break;
    }
  }
  if (flag) {
    cout << "YES";
  } else {
    cout << "NO";
  }
}
