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  1. or download this
    c:\@Work\Perl\monks>perl -wMstrict -MData::Dumper -le
"my $hr_same_content = { 1 => 'Ok' };
...
        };

Oops...
  2. or download this
    c:\@Work\Perl\monks>perl -wMstrict -MData::Dumper -le
"my %fields;
...
        };

Use of uninitialized value in print at -e line 1.
  3. or download this
    c:\@Work\Perl\monks>perl -wMstrict -MData::Dumper -le
"my %fields = (
...
Ok
Oops...
Oops...