#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, c;
  int x;
  cin >> a >> b >> c;
  if (c > a && c > b) {
    x = a + b;
    if (x == c) {
      cout << "Yes";
    } else
      cout << "No";
  } else if (b > a && b > c) {
    x = a + c;
    if (x == b) {
      cout << "Yes";
    } else
      cout << "No";
  } else if (a > b && a > c) {
    x = b + c;
    if (x == a) {
      cout << "Yes";
    } else
      cout << "No";
  }
  return 0;
}
