#include <bits/stdc++.h>
int main() {
  long long a, b, s, sum;
  scanf("%lld%lld%lld", &a, &b, &s);
  if (a < 0) a = -a;
  if (b < 0) b = -b;
  sum = a + b;
  if (s < sum) printf("No");
  if (sum == s) printf("Yes");
  if (s > sum && (s - sum) % 2 != 0) printf("No");
  if (s > sum && (s - sum) % 2 == 0) printf("Yes");
}
