in reply to utf8 bloody chars
Especially if you are a beginner, you should place the statements use warnings; and use strict; at the beginning of all your code:
I.e., "OxO3c9" (letter "O" vice decimal digit "0") is not a hex number, as already noted. See warnings and strict.c:\@Work\Perl\monks>perl -le "use warnings; use strict; ;; use utf8; ;; my $pi_char = chr(OxO3c9); print qq{Greek letter '$pi_char' here}; " Bareword "OxO3c9" not allowed while "strict subs" in use at -e line 1. Execution of -e aborted due to compilation errors.
In other words, "Help Perl to help you."
Give a man a fish: <%-{-{-{-<
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Seekers of Perl Wisdom