D21231323113313132313232233131121133132313232322331313232223221   >>    D2123132311331313231323223313112113313231323232233131323222322   <<    D21231323113313132313232233131121133132313232322331313232223223   >>      D21231323113313132313232233131121133132313232322331313232223222   >>