D121213233313133313123132313232233131323223313232213123231323111   >>    D12121323331313331312313231323223313132322331323221312323132311   <<    D121213233313133313123132313232233131323223313232213123231323113   >>      D121213233313133313123132313232233131323223313232213123231323112   >>