#include <bits/stdc++.h>
using ll = long long;
using namespace std;
template <class T>
inline bool chmax(T& a, T b) {
  if (a < b) {
    a = b;
    return 1;
  }
  return 0;
}
template <class T>
inline bool chmin(T& a, T b) {
  if (a > b) {
    a = b;
    return 1;
  }
  return 0;
}
const long long INFLL = 1LL << 62;
const int INF = 1 << 30;
const double PI = acos(-1);
int main() {
  int a, b, c;
  int ans = 0;
  cin >> a >> b >> c;
  ans = a + b + c;
  cout << ((ans == a or ans == b or ans == c) ? "Yes" : "No") << endl;
}
