#include <bits/stdc++.h>
using namespace std;
const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};
int main() {
  int a, b, c;
  cin >> a >> b >> c;
  if (a + b == c || a + c || b || b + c == a)
    cout << "Yes" << endl;
  else
    cout << "No" << endl;
  return 0;
}
