#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, c;
  scanf("%d %d %d", &a, &b, &c);
  if ((a + b + c) % 2 == 0 &&
      ((a + b + c) / 2 == a || (a + b + c) / 2 == b || (a + b + c) / 2 == c)) {
    printf("Yes\n");
  }
}
