D121213233313223313132322231323132313331323132233131323331323221123231   >>    D12121323331322331313232223132313231333132313223313132333132322112323   <<    D121213233313223313132322231323132313331323132233131323331323221123233   >>      D121213233313223313132322231323132313331323132233131323331323221123232   >>