D1212132333131113231323221323123231313231323223313231323223313231313111211   >>    D121213233313111323132322132312323131323132322331323132322331323131311121   <<    D1212132333131113231323221323123231313231323223313231323223313231313111213   >>      D1212132333131113231323221323123231313231323223313231323223313231313111212   >>