D233123313113313132313231311112331323221323223313231333112211232333131   >>    D23312331311331313231323131111233132322132322331323133311221123233313   <<    D233123313113313132313231311112331323221323223313231333112211232333133   >>      D233123313113313132313231311112331323221323223313231333112211232333132   >>