D121213233313221323133313221323132333132313112211231323221323221   >>    D12121323331322132313331322132313233313231311221123132322132322   <<    D121213233313221323133313221323132333132313112211231323221323223   >>      D121213233313221323133313221323132333132313112211231323221323222   >>