D121212121213132333131232313232233131323223313232233131133132312121211211   >>    D12121212121313233313123231323223313132322331323223313113313231212121121   <<    D121212121213132333131232313232233131323223313232233131133132312121211213   >>      D121212121213132333131232313232233131323223313232233131133132312121211212   >>