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