#include <bits/stdc++.h>
using namespace std;
void Fast_Read_Out() {
  ios_base::sync_with_stdio(0);
  cin.tie(), cout.tie();
}
void Random() {
  unsigned int seed;
  asm("rdtsc" : "=A"(seed));
  srand(seed);
}
unsigned int Time() {
  unsigned int time = clock() / 1000.00;
  return time;
}
const int inf = int(1e9) + 123;
int n, sum;
string s;
int main() {
  Random();
  Fast_Read_Out();
  cin >> n;
  cin >> s;
  for (int i = 0; i < n; i++) sum += s[i] - '0';
  for (int i = 0; i <= n * 9; i++) {
    int cur = 0, cnt = 0, ok = 0, sum1 = 0;
    for (int j = 0; j < n; j++) {
      if (cur < i) cur += s[j] - '0';
      if (cur == i) sum1 += cur, cur = 0, cnt++;
      if (cur > i) {
        ok = 1;
        break;
      }
    }
    if (cnt < 2) continue;
    if (ok == 1) continue;
    if (sum == sum1) cout << "YES" << endl, exit(0);
  }
  cout << "NO" << endl;
}
