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