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