B33132212112331323223313211232333132313331322331333133313123231323221211
  >>
   B3313221211233132322331321123233313231333132233133313331312323132322121
  <<
   B33132212112331323223313211232333132313331322331333133313123231323221213
  >>
 
 
 B33132212112331323223313211232333132313331322331333133313123231323221212
  >>