B23112323331323132313223313331323331323223313231323133313223311   >>    B2311232333132313231322331333132333132322331323132313331322331   <<    B23112323331323132313223313331323331323223313231323133313223313   >>      B23112323331323132313223313331323331323223313231323133313223312   >>