#include <bits/stdc++.h>
using namespace std;
int abs(int num) {
  if (num > 0)
    return num;
  else
    return -num;
}
long long gcd(long long a, long long b) {
  if (b == 0)
    return a;
  else
    return gcd(b, a % b);
}
long long lcm(long long a, long long b) { return a * b / gcd(a, b); }
int main() {
  vector<int> candy(3);
  for (int i = 0; i < 3; i++) {
    cin >> candy.at(i);
  }
  sort(candy.begin(), candy.end());
  if (candy.at(0) == candy.at(1) + candy.at(2)) {
    cout << "Yes" << endl;
  } else {
    cout << "No" << endl;
  }
}
