#include <bits/stdc++.h>
using namespace std;
using LL = long long;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<LL>;
using VVL = vector<VL>;
using VD = vector<double>;
using VVD = vector<VD>;
using PII = pair<int, int>;
using PDD = pair<double, double>;
using PLL = pair<LL, LL>;
using VPII = vector<PII>;
const int INF = 1e9;
const int MOD = INF + 7;
const LL LLINF = 1e18;
int main(void) {
  int a, b, c;
  cin >> a >> b >> c;
  bool f = false;
  if (a == b || b == c || c == a) {
    f = true;
  }
  if (a + b == c || b + c == a || c + a == b) {
    f = true;
  }
  cout << (f ? "Yes" : "No") << endl;
}
