D132311233131333131331123232233132313232233133313132313231323132231221   >>    D13231123313133313133112323223313231323223313331313231323132313223122   <<    D132311233131333131331123232233132313232233133313132313231323132231223   >>      D132311233131333131331123232233132313232233133313132313231323132231222   >>