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