D231123313223313132322331323111323132333132313233313311232313111   >>    D23112331322331313232233132311132313233313231323331331123231311   <<    D231123313223313132322331323111323132333132313233313311232313113   >>      D231123313223313132322331323111323132333132313233313311232313112   >>