D231123313223313132313233313131323331313233313233313311221213111   >>    D23112331322331313231323331313132333131323331323331331122121311   <<    D231123313223313132313233313131323331313233313233313311221213113   >>      D231123313223313132313233313131323331313233313233313311221213112   >>