int main () {
  if (y) {
    one();
  }
  else {
    two();
  }
  while (y) {
    one();
  }
  do {
    one();
  } while(y);
  switch (y) {
  case 12:one();
  case 27:two();
  }
  {
    one();
  }
}

int main () {
  if (y) {
    one();
  }
  else {
    two();
      }
}
