D132311233131333131331123232233132313232233133313132313231322123111   >>    D13231123313133313133112323223313231323223313331313231323132212311   <<    D132311233131333131331123232233132313232233133313132313231322123113   >>      D132311233131333131331123232233132313232233133313132313231322123112   >>