#include <bits/stdc++.h>
using ll = long long;
static const ll mod = 1e9 + 7;
static const ll INF = 1LL << 50;
using namespace std;
int main() {
  int a, b, c;
  int maxv = max({a, b, c});
  if (maxv == (a + b + c - maxv))
    cout << "Yes" << endl;
  else
    cout << "No" << endl;
}
