D1212132333131113231323221323123231313231323223313231323331323133313232311   >>    D121213233313111323132322132312323131323132322331323132333132313331323231   <<    D1212132333131113231323221323123231313231323223313231323331323133313232313   >>      D1212132333131113231323221323123231313231323223313231323331323133313232312   >>