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