#include <iostream>
#include <vector>

int main() {
  int N;
  int mask = 1;
  std::cin >> N;
  std::vector<int> E(N);
  for (int i = 0; i < N; i++) {
    std::cin >> E[i];
    mask *= 3;
  }
  mask /= 3;

  for (int i = 0; i < mask; i++) {
    int m = i;
    int a = 0, b = 0, c = 0;

    for (int j = 0; j < N; j++) {
      if (m % 3 == 0) a += E[j];
      if (m % 3 == 1) b += E[j];
      if (m % 3 == 2) c += E[j];
      m /= 3;
    }

    if (a == b && b == c) {
      std::cout << "Yes\n";
      return 0;
    }
  }

  std::cout << "No\n";
}