#include <bits/stdc++.h>
int main() {
  long long a, b, s, m, t;
  scanf("%I64d%I64d%I64d", &a, &b, &s);
  m = abs(a) + abs(b);
  if (m <= s && (s - m) % 2 == 0)
    printf("Yes");
  else
    printf("No");
  return 0;
}
