D1212132333131113231323221323123231313231323223313231323331323231323221121   >>    D121213233313111323132322132312323131323132322331323132333132323132322112   <<    D1212132333131113231323221323123231313231323223313231323331323231323221123   >>      D1212132333131113231323221323123231313231323223313231323331323231323221122   >>