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This Perl program causes wonder error. Because one space in it is fake as Unicode.
use v5.10;
use strict;
use warnings;
for my $i (1..10) {
  say "num is $i";
$ perl -wc
Unrecognized character \xC2; marked by <-- HERE after <-- HERE near column 1 at line 8.
$ perl -E 'say "\xC2\xA0"' | pbcopy
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