#include <bits/stdc++.h>
using namespace std;
const int N = 100 * 1000;
const int mod = 1e9 + 7;
int min3(int a, int b, int c) { return min(a, min(b, c)); }
int max3(int a, int b, int c) { return max(a, max(b, c)); }
int min4(int a, int b, int c, int d) { return min(min(a, b), min(c, d)); }
int max4(int a, int b, int c, int d) { return max(max(a, b), max(c, d)); }
int32_t main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  int a, b, c;
  int sum = 0;
  cin >> a;
  sum += a;
  cin >> b;
  sum += b;
  cin >> c;
  sum += c;
  if (a == sum / 2 || b == sum / 2 || c == sum / 2)
    puts("Yes");
  else
    puts("No");
  return 0;
}
