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-rw-r--r--prolog/problems/lists/len_2/common.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/prolog/problems/lists/len_2/common.py b/prolog/problems/lists/len_2/common.py
index d30588c..61ea064 100644
--- a/prolog/problems/lists/len_2/common.py
+++ b/prolog/problems/lists/len_2/common.py
@@ -17,9 +17,9 @@ len([_|T], Len) :-
'''
test_cases = [
- ('len([8,3,5,1], X)',
+ ('len([8, 3, 5, 1], X)',
[{'X': '4'}]),
- ('len([2,-3,5,0,3], X)',
+ ('len([2, -3, 5, 0, 3], X)',
[{'X': '5'}]),
('len([], X)',
[{'X': '0'}]),