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