D121212121213132333131232313232233131323223313232233131132113311   >>    D12121212121313233313123231323223313132322331323223313113211331   <<    D121212121213132333131232313232233131323223313232233131132113313   >>      D121212121213132333131232313232233131323223313232233131132113312   >>