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