#include <bits/stdc++.h>
int main(void) {
  int a, b, c, all = 0;
  scanf("%d", &a);
  scanf("%d", &b);
  scanf("%d", &c);
  all = a + b + c;
  if (all / 2 == a || all / 2 == b || all / 2 == c) {
    printf("Yes");
  } else
    printf("No");
  return 0;
}
