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