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