B23112323331323132313223313331323331323223313231323132322331221
  >>
   B2311232333132313231322331333132333132322331323132313232233122
  <<
   B23112323331323132313223313331323331323223313231323132322331223
  >>
 
 
 B23112323331323132313223313331323331323223313231323132322331222
  >>