B23112323331323132313223313331323331323223313231323133313233313233313221131
  >>
   B2311232333132313231322331333132333132322331323132313331323331323331322113
  <<
   B23112323331323132313223313331323331323223313231323133313233313233313221133
  >>
 
 
 B23112323331323132313223313331323331323223313231323133313233313233313221132
  >>