#include <bits/stdc++.h>
int main() {
  int a, b, c, sum;
  std::cin >> a >> b >> c;
  sum = a + b + c;
  if (sum / 2 == std::max({a, b, c}))
    std::cout << "Yes" << std::endl;
  else
    std::cout << "No" << std::endl;
  return 0;
}
