#include <bits/stdc++.h>
using namespace std;
template <class T>
inline bool chmin(T& a, T b) {
  if (a > b) {
    a = b;
    return 1;
  }
  return 0;
}
template <class T>
inline bool chmax(T& a, T b) {
  if (a < b) {
    a = b;
    return 1;
  }
  return 0;
}
const long long INF = 1LL << 60;
int main() {
  int a, b, c;
  int sum = a + b + c;
  int maxv = max({a, b, c});
  sum -= maxv;
  if (maxv == sum)
    puts("Yes");
  else
    puts("No");
}
