D121212121213132333131232313232233131323223313231322331333132313133112121121   >>    D12121212121313233313123231323223313132322331323132233133313231313311212112   <<    D121212121213132333131232313232233131323223313231322331333132313133112121123   >>      D121212121213132333131232313232233131323223313231322331333132313133112121122   >>