#include <bits/stdc++.h>
using namespace std;
int main() {
  int a, b, s;
  cin >> a >> b >> s;
  a = abs(a);
  b = abs(b);
  bool ans = s >= a + b and s % 2 == (a + b) % 2;
  printf("%s\n", ans ? "Yes" : "No");
  return 0;
}
