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