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#!/usr/bin/perl
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my $a = 4;
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print "\$a = $a\n";
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print "\$a++ = " . $a++ . "\n";
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print "++\$a = " . ++$a . "\n";
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print "\$a-- = " . $a-- . "\n";
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print "--\$a = " . --$a . "\n";
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print "\$a += 5 = " . ($a += 5) . "\n";
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print "\$a -= 2 = " . ($a -= 2) . "\n";
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