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