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