D121212121213132333131232313232233131323223313231322331323331323232113221   >>    D12121212121313233313123231323223313132322331323132233132333132323211322   <<    D121212121213132333131232313232233131323223313231322331323331323232113223   >>      D121212121213132333131232313232233131323223313231322331323331323232113222   >>