B33113313132313113313223313331323331333132323331333231211
  >>
   B3311331313231311331322331333132333133313232333133323121
  <<
   B33113313132313113313223313331323331333132323331333231213
  >>
 
 
 B33113313132313113313223313331323331333132323331333231212
  >>