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diff --git a/challenge-325/luca-ferrari/python/ch-2.py b/challenge-325/luca-ferrari/python/ch-2.py
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+#!python
+
+#
+# Perl Weekly Challenge 325
+# Task 2
+#
+# See <https://perlweeklychallenge.org/blog/perl-weekly-challenge-325>
+#
+
+import sys
+
+# task implementation
+# the return value will be printed
+def task_2( args ):
+    prices     = list( map( int, args ) )
+    new_prices = []
+
+    for i in range( 0, len( prices ) ) :
+        current  = prices[ i ]
+        next_min = list( filter( lambda x: x < current, prices[ i + 1 : ] ) )
+        if len( next_min ) > 0 :
+            next_min = next_min[ 0 ]
+        else:
+            next_min = 0
+
+        new_prices.append( current - next_min )
+
+    return new_prices
+
+
+
+# invoke the main without the command itself
+if __name__ == '__main__':
+    print( task_2( sys.argv[ 1: ] ) )