B33113313132313113313223313331323133313221211331333133313331333131133133313331311331333221323121
  >>
   B3311331313231311331322331333132313331322121133133313331333133313113313331333131133133322132312
  <<
   B33113313132313113313223313331323133313221211331333133313331333131133133313331311331333221323123
  >>
 
 
 B33113313132313113313223313331323133313221211331333133313331333131133133313331311331333221323122
  >>