B23112323331323132313223313331323331323223313231323132322331322233231
  >>
   B2311232333132313231322331333132333132322331323132313232233132223323
  <<
   B23112323331323132313223313331323331323223313231323132322331322233233
  >>
 
 
 B23112323331323132313223313331323331323223313231323132322331322233232
  >>