#include <bits/stdc++.h>
using namespace std;
template <class T>
inline void read(T& x) {
  char c;
  bool fu = 0;
  for (c = getchar(); c <= 32; c = getchar())
    ;
  if (c == '-') fu = 1, c = getchar();
  for (x = 0; c > 32; c = getchar()) x = x * 10 + c - '0';
  if (fu) x *= -1;
}
template <class T>
inline void read(T& x, T& y) {
  read(x);
  read(y);
}
template <class T>
inline void read(T& x, T& y, T& z) {
  read(x, y);
  read(z);
}
const int N = 111111;
int a, b, c;
int main() {
  read(a, b, c);
  int d = a + b + c;
  if (a == d / 2 || b == d / 2 || c == d / 2)
    puts("Yes");
  else
    puts("No");
  return 0;
}
