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diff --git a/challenge-110/wlmb/perl/ch-2.pl b/challenge-110/wlmb/perl/ch-2.pl
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+#!/usr/bin/env perl
+# Perl weekly challenge 110
+# Task 2: Transpose file
+#
+# Simple version
+# See https://wlmb.github.io/2021/04/27/PWC110/#task-2-transpose-file
+use strict;
+use warnings;
+use v5.12;
+my @input=map {chomp; [split /,/]} <>;
+say join "\n", map { my $c=$_; join ",", map {$input[$_][$c]} 0..@input-1} 0..scalar @{$input[0]}-1;