D121212121213132333131232313232233131323223313231322331333132313232211321   >>    D12121212121313233313123231323223313132322331323132233133313231323221132   <<    D121212121213132333131232313232233131323223313231322331333132313232211323   >>      D121212121213132333131232313232233131323223313231322331333132313232211322   >>