D132311233131333131331123232233132313232233133313132313231323132322112111   >>    D13231123313133313133112323223313231323223313331313231323132313232211211   <<    D132311233131333131331123232233132313232233133313132313231323132322112113   >>      D132311233131333131331123232233132313232233133313132313231323132322112112   >>