#include<bits/stdc++.h>

using namespace std;

int main() {
  int a, b, c;
  cin >> a >> b >> c;
  if (a == b+c || b == a+c || c == a+b) {
    cout << "Yes" << end;
  } else {
    cout << "No" << end;
  }
  return 0;
}