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diff --git a/challenge-242/luca-ferrari/python/ch-2.py b/challenge-242/luca-ferrari/python/ch-2.py
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+#!python
+
+#
+# Perl Weekly Challenge 242
+# Task 2
+#
+# See <https://perlweeklychallenge.org/blog/perl-weekly-challenge-242/>
+#
+# $ python3 ch-2.py 1 0 0 '|' 0 0 1 '|' 1 1 1
+# 1,1,0
+# 0,1,1
+# 0,0,0
+
+
+import sys
+
+
+
+# task implementation
+def main( argv ):
+    matrix = []
+    current_row = 0
+
+    matrix.append( [] )
+    for current in argv:
+        if current != '|':
+            matrix[ current_row ].append( int( current ) )
+        else:
+            current_row += 1
+            matrix.append( [] )
+
+    # inner function to use with map
+    # returns a string to make join happy!
+    def task2(n):
+        if n == 1:
+            return "0"
+        else:
+            return "1"
+
+
+    for current_row in matrix:
+        print( ",".join( map( task2, reversed( current_row ) ) ) )
+
+
+
+
+# invoke the main without the command itself
+if __name__ == '__main__':
+    main( sys.argv[ 1: ] )
+
+