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  1. #!/usr/bin/perl
  2. $a=10;
  3. while ($a>0)
  4. {
  5. print "$a, ";
  6. $a=$a-1;
  7. }
Success #stdin #stdout 0.01s 5320KB
stdin
Standard input is empty
stdout
10, 9, 8, 7, 6, 5, 4, 3, 2, 1,