#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, c;
  cin >> a >> b >> c;
  if ((a + b) < c) {
    cout << "No" << endl;
  } else if (a != 1 || a != 5 || a != 10 || a != 50 || a != 100 || a != 500 ||
             b != 1 || b != 5 || b != 10 || b != 50 || b != 100 || b != 500) {
    if ((a + b) != c) {
      cout << "No" << endl;
    }
  } else {
    cout << "Yes" << endl;
  }
}
