#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, s;
  cin >> a >> b >> s;
  if (a < 0) a *= -1;
  if (b < 0) b *= -1;
  if (s < a + b || (a + b) % 2 != s % 2)
    cout << "No\n";
  else
    cout << "Yes\n";
  return 0;
}
