#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main(void) {
  vector<int> arr(3);
  for (int i = 0; i < 3; i++) scanf("%d", &arr[i]);
  sort(arr.begin(), arr.end());
  if (arr[0] == arr[1] || arr[1] == arr[2] || arr[0] + arr[1] == arr[2])
    puts("Yes");
  else
    puts("No");
  return 0;
}
