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