#include <bits/stdc++.h>
int main(void) {
  long long int a, b, s, ans;
  scanf("%I64d %I64d %I64d", &a, &b, &s);
  if (a < 0) a = a * -1;
  if (b < 0) b = b * -1;
  ans = s - a - b;
  if (ans < 0)
    printf("No");
  else if (ans % 2)
    printf("No");
  else
    printf("Yes");
  return 0;
}
