D1212132333132233131323222313231323221323132322331311331323331312312331   >>    D121213233313223313132322231323132322132313232233131133132333131231233   <<    D1212132333132233131323222313231323221323132322331311331323331312312333   >>      D1212132333132233131323222313231323221323132322331311331323331312312332   >>