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