D1313331322132333132333131311331323331323132233132313232233132211   >>    D131333132213233313233313131133132333132313223313231323223313221   <<    D1313331322132333132333131311331323331323132233132313232233132213   >>      D1313331322132333132333131311331323331323132233132313232233132212   >>