B23112323331323132313223313331323331323223313231323132322331323222311   >>    B2311232333132313231322331333132333132322331323132313232233132322231   <<    B23112323331323132313223313331323331323223313231323132322331323222313   >>      B23112323331323132313223313331323331323223313231323132322331323222312   >>