#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;
  int n = a + b;
  if (n > s)
    cout << "No";
  else if (n == s)
    cout << "Yes";
  else {
    if ((s - n) % 2 == 0)
      cout << "Yes";
    else
      cout << "No";
  }
  return 0;
}
