D11212112331311331313231322132313331313232233132322112211231131   >>    D1121211233131133131323132213231333131323223313232211221123113   <<    D11212112331311331313231322132313331313232233132322112211231133   >>      D11212112331311331313231322132313331313232233132322112211231132   >>