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