D1212121212131323131133132311233132313232233132333132333131113231   >>    D121212121213132313113313231123313231323223313233313233313111323   <<    D1212121212131323131133132311233132313232233132333132333131113233   >>      D1212121212131323131133132311233132313232233132333132333131113232   >>