It gives me an error like no &wanted subroutine given at /usr/share/perl/5.18/File/Find.pm line 1073. NO IDEA WHY?

#!/usr/bin/perl
use File::Find;
use strict;
use warnings;
my $path = shift || '.';
find($path);

find( sub {
    return unless -r && -f;
    my $size = -s;
    print "$File::Find::name $size\n" if $size > 51200;
  }, $path )
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