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