D1212132333131113231323221323123231313231323223313231323223313232222331   >>    D121213233313111323132322132312323131323132322331323132322331323222233   <<    D1212132333131113231323221323123231313231323223313231323223313232222333   >>      D1212132333131113231323221323123231313231323223313231323223313232222332   >>