D121212121213132333131232313232233131323223313231322331313232212331   >>    D12121212121313233313123231323223313132322331323132233131323221233   <<    D121212121213132333131232313232233131323223313231322331313232212333   >>      D121212121213132333131232313232233131323223313231322331313232212332   >>