#include <bits/stdc++.h>
using namespace std;
int main() {
  long long int a, b, s, a1, b1;
  cin >> a1 >> b1 >> s;
  a = abs(a1);
  b = abs(b1);
  if (s < (a + b)) {
    cout << "No" << endl;
  }
  if (s == (a + b)) {
    cout << "Yes" << endl;
  }
  if (s > (a + b)) {
    int temp = s - a + b;
    if (temp % 2 == 0) {
      cout << "Yes" << endl;
    } else {
      cout << "No" << endl;
    }
  }
  return 0;
}
