#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, c;
  std::cin >> a >> b >> c;
  if ((a + b + c) / 2 == a || b || c) {
    std::cout << "Yes" << '\n';
  } else {
    std::cout << "No" << '\n';
  }
  return 0;
}
