#include <bits/stdc++.h>
using namespace std;
struct edge {
  int u, v;
  long long w;
};
long long MOD = 1000000007;
long long _MOD = 1000000009;
double EPS = 1e-10;
int main() {
  int a, b, c;
  cin >> a >> b >> c;
  if (a + b == c || b + c == a || a + c == b)
    printf("Yes");
  else
    printf("No");
}
