#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";
  } else if (abs(a) + abs(b) < s) {
    if (abs((abs(a) + abs(b)) - s) % 2 == 0) {
      cout << "Yes";
    } else
      cout << "No";
  } else if (abs(a) + abs(b) > s) {
    cout << "No";
  }
  return 0;
}
