#include <bits/stdc++.h>
using namespace std;
signed long long int a, b;
long long int a1, b1, y, s;
int main() {
  cin >> a >> b >> s;
  if (a >= 0)
    a1 = a;
  else
    a1 = 0 - a;
  if (b >= 0)
    b1 = b;
  else
    b1 = 0 - b;
  y = a1 + b1;
  if (y - s == 0 || (y - s) % 2 == 0) {
    if (s >= y)
      cout << "Yes";
    else
      cout << "No";
  } else
    cout << "No";
}
