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diff --git a/challenge-333/luca-ferrari/python/ch-1.py b/challenge-333/luca-ferrari/python/ch-1.py
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+++ b/challenge-333/luca-ferrari/python/ch-1.py
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+#!python
+
+#
+# Perl Weekly Challenge 333
+# Task 1
+#
+# See <https://perlweeklychallenge.org/blog/perl-weekly-challenge-333>
+#
+
+import sys
+
+# task implementation
+# the return value will be printed
+def task_1( args ):
+    coords = []
+    for i in range( 0, len( args ) - 1 ):
+        if i % 2 != 0:
+            continue
+
+        x = int( args[ i ] )
+        y = int( args[ i + 1 ] )
+
+        current = {}
+        current[ 'x' ] = x
+        current[ 'y' ] = y
+
+        coords.append( current )
+
+    first  = coords[ 0 ]
+    second = coords[ 1 ]
+
+
+    for i in range( 2, len( coords ) ):
+        current = coords[ i ]
+        if ( ( current[ 'x' ] - first[ 'x' ] ) * ( first[ 'y' ] - second[ 'y' ] ) ) != ( ( current[ 'y' ] - second[ 'y' ] ) * ( first[ 'x' ] - second[ 'x' ] ) ):
+            return False
+
+    return True
+
+
+
+# invoke the main without the command itself
+if __name__ == '__main__':
+    print( task_1( sys.argv[ 1: ] ) )