D1212132333132233131323222313231323221323132322331313331323131232311   >>    D121213233313223313132322231323132322132313232233131333132313123231   <<    D1212132333132233131323222313231323221323132322331313331323131232313   >>      D1212132333132233131323222313231323221323132322331313331323131232312   >>