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