D121213233313133313123132313231323221323132322331322331313231311311   >>    D12121323331313331312313231323132322132313232233132233131323131131   <<    D121213233313133313123132313231323221323132322331322331313231311313   >>      D121213233313133313123132313231323221323132322331322331313231311312   >>