#include <bits/stdc++.h>
using namespace std;
int main() {
  long long int a, b, s, sum;
  cin >> a >> b >> s;
  sum = abs(a) + abs(b);
  if (sum % 2 == 0 && s % 2 == 0 && s >= sum)
    cout << "Yes";
  else if (sum % 2 == 1 && s % 2 && s >= sum)
    cout << "Yes";
  else
    cout << "No";
}
