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#!/usr/bin/perl
use warnings;
use strict;
my $variable = 9;
my $reference1 = \$variable;
print( "$variable, $reference1, $$reference1\n" );
my $reference2 = \$reference1;
print( "$variable, $reference1, $$reference1, $reference2, ", "$$reference2, $$$reference2\n" );
my $reference3 = \\\\$variable;
print( "$reference3, $$reference3, $$$reference3,\n", " $$$$reference3, $$$$$reference3\n" );
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