#include <bits/stdc++.h>
using namespace std;
int a, b, c;
int main() {
  scanf("%d %d %d", &a, &b, &c);
  if (a == b + c || b == a + c || c == a + b)
    printf("%s", "Yes");
  else
    ("%s", "No");
  return 0;
}
