#include <bits/stdc++.h>
using namespace std;
int main() {
  long long int a, b, s;
  cin >> a >> b >> s;
  if (a < 0) a *= -1;
  if (b < 0) b *= -1;
  if (s < (a + b))
    cout << "No";
  else if ((s - (a + b)) & 1) {
    cout << "No";
  } else {
    cout << "Yes";
  }
}
