D1313331322132333132333131311331323331323132233132313132322123111   >>    D131333132213233313233313131133132333132313223313231313232212311   <<    D1313331322132333132333131311331323331323132233132313132322123113   >>      D1313331322132333132333131311331323331323132233132313132322123112   >>