#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, s, d;
  while (cin >> a >> b >> s) {
    d = abs(a) + abs(b);
    cout << (s >= d && (s - d) % 2 == 0 ? "Yes" : "No") << endl;
  }
  return 0;
}
