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