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@array1 = "ss_dir1 ss_dir2 ss_dir3 ss_di4 ff_dir1 ff_dir2 ff_dir3 ff_d
+ir4 ff_dir5 ff_dir6 ff_dir7 ff_dir8";
@array2 = "sr2r hr2r si2r sr2o hi2r hr2o";
@array3 = "wns tns fep";

'ss_dir1' => { 'sr2r' => 'wns tns fep'
               'hr2r' => 'wns tns fep'
...
               'hi2r' => 'wns tns fep'
               'hr2o' => 'wns tns fep'
             }