#include <bits/stdc++.h>
using namespace std;
inline long long mod(long long a, long long m) { return (a % m + m) % m; }
template <class T>
bool chmax(T &a, const T &b) {
  if (a < b) {
    a = b;
    return 1;
  }
  return 0;
}
template <class T>
bool chmin(T &a, const T &b) {
  if (b < a) {
    a = b;
    return 1;
  }
  return 0;
}
int a, b, c;
void solve() {
  cin >> a >> b >> c;
  if (a + b == c || a + c == b || b + c == c)
    cout << "Yes" << endl;
  else
    cout << "No" << endl;
}
int main() {
  std::cin.tie(0);
  std::ios::sync_with_stdio(false);
  int t = 1;
  while (t--) {
    solve();
  }
  return 0;
}
