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