D23112331322331313232233132311132313233313231323331331123123121   >>    D2311233132233131323223313231113231323331323132333133112312312   <<    D23112331322331313232233132311132313233313231323331331123123123   >>      D23112331322331313232233132311132313233313231323331331123123122   >>