D121213233313133313123132313231323221323132322331322331311213231   >>    D12121323331313331312313231323132322132313232233132233131121323   <<    D121213233313133313123132313231323221323132322331322331311213233   >>      D121213233313133313123132313231323221323132322331322331311213232   >>