B23112323331323132313223313331323331323223313231323133313331323132323111   >>    B2311232333132313231322331333132333132322331323132313331333132313232311   <<    B23112323331323132313223313331323331323223313231323133313331323132323113   >>      B23112323331323132313223313331323331323223313231323133313331323132323112   >>