#include <cstdio>
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");
  }
}