#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, c;
  int max = 0, result = 0;
  cin >> a >> b >> c;
  int array[] = {a, b, c};
  for (int x = 1; x <= 2; x++) {
    if (array[x] < array[x + 1]) {
      max = array[x + 1];
    }
  }
  for (int x = 0; x <= 1; x++) {
    if (array[x] < max) {
      result += array[x];
    }
  }
  if (result == max) {
    cout << "Yes" << endl;
  } else {
    cout << "No" << endl;
  }
  return 0;
}
