D121212122132313231323331313132313231323132233133112213232212111   >>    D12121212213231323132333131313231323132313223313311221323221211   <<    D121212122132313231323331313132313231323132233133112213232212113   >>      D121212122132313231323331313132313231323132233133112213232212112   >>