D121213233313133313123132313231323221323132322331322331313231231   >>    D12121323331313331312313231323132322132313232233132233131323123   <<    D121213233313133313123132313231323221323132322331322331313231233   >>      D121213233313133313123132313231323221323132322331322331313231232   >>