D121212121213132333131232313232233131323223313231322331323113313231311   >>    D12121212121313233313123231323223313132322331323132233132311331323131   <<    D121212121213132333131232313232233131323223313231322331323113313231313   >>      D121212121213132333131232313232233131323223313231322331323113313231312   >>