D121212121213132333131232313232233131323223313231322331313231323123231111   >>    D12121212121313233313123231323223313132322331323132233131323132312323111   <<    D121212121213132333131232313232233131323223313231322331313231323123231113   >>      D121212121213132333131232313232233131323223313231322331313231323123231112   >>