D11313232233131133131231323132313233313232211221121111331323331323223313231211   >>    D1131323223313113313123132313231323331323221122112111133132333132322331323121   <<    D11313232233131133131231323132313233313232211221121111331323331323223313231213   >>      D11313232233131133131231323132313233313232211221121111331323331323223313231212   >>