D1212121212131323331312323132322331313232233132313223313331323321133221   >>    D121212121213132333131232313232233131323223313231322331333132332113322   <<    D1212121212131323331312323132322331313232233132313223313331323321133223   >>      D1212121212131323331312323132322331313232233132313223313331323321133222   >>