#include <bits/stdc++.h>
using namespace std;
static const long long maxLL = (long long)1 << 62;
const long long MOD = 1000000007, INF = 1e18;
long long dy[] = {-1, 0, 1, 0};
long long dx[] = {0, 1, 0, -1};
long long a, b, c;
signed main() {
  cin >> a >> b >> c;
  (a + b + c) / 2 == max({a, b, c}) ? puts("Yes") : puts("No");
  return 0;
}
