D121212121213132333131232313232233131323223313232233131133132312112323111   >>    D12121212121313233313123231323223313132322331323223313113313231211232311   <<    D121212121213132333131232313232233131323223313232233131133132312112323113   >>      D121212121213132333131232313232233131323223313232233131133132312112323112   >>