1 files changed, 29 insertions, 0 deletions
diff --git a/challenge-120/abigail/perl/ch-1.pl b/challenge-120/abigail/perl/ch-1.pl
new file mode 100644
index 0000000000..b5aa1b4b9d
--- /dev/null
+++ b/challenge-120/abigail/perl/ch-1.pl
@@ -0,0 +1,29 @@
+#!/opt/perl/bin/perl
+
+use 5.032;
+
+use strict;
+use warnings;
+no  warnings 'syntax';
+
+use experimental 'signatures';
+use experimental 'lexical_subs';
+
+#
+# See ../README.md
+#
+
+#
+# Run as: perl ch-1.pl < input-file
+#
+
+#
+# This is just week 119 with different constants
+#
+
+
+while (<>) {
+    say + ($_ & 0x55) << 1  # Odd  bits shifted one the right 
+        | ($_ & 0xAA) >> 1  # Even bits shifted one to the left
+}
+