#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
using namespace std;
long long n, a[4];
int32_t main() {
  ios_base::sync_with_stdio();
  cin.tie();
  cout.tie();
  ;
  cin >> a[0] >> a[1] >> a[2];
  sort(a, a + n);
  if (a[0] + a[1] == a[2]) {
    return cout << "Yes", 0;
  }
  cout << "No";
  return 0;
}
