D3312121211331313331313232233132322132333132322112331313231323222311   >>    D331212121133131333131323223313232213233313232211233131323132322231   <<    D3312121211331313331313232233132322132333132322112331313231323222313   >>      D3312121211331313331313232233132322132333132322112331313231323222312   >>