D132311233131333131331123232233132313232233133313132313231333132322132121   >>    D13231123313133313133112323223313231323223313331313231323133313232213212   <<    D132311233131333131331123232233132313232233133313132313231333132322132123   >>      D132311233131333131331123232233132313232233133313132313231333132322132122   >>