#include <bits/stdc++.h>
using namespace std;
const int inf = 1 << 25;
const long long INF = 1ll << 50;
const double pi = acos(-1);
const double eps = 1e-8;
const vector<int> emp;
int main() {
  int sum, M = -1;
  for (int i = 0; i < 3; i++) {
    int n;
    cin >> n;
    sum += n;
    M = max(M, n);
  }
  if (sum == 2 * M)
    cout << "Yes" << endl;
  else
    cout << "No" << endl;
}
