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();
      }
}
