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-rw-r--r--prolog/problems/lists/conc_3/en.py8
1 files changed, 4 insertions, 4 deletions
diff --git a/prolog/problems/lists/conc_3/en.py b/prolog/problems/lists/conc_3/en.py
index 7399f7e..ba1a571 100644
--- a/prolog/problems/lists/conc_3/en.py
+++ b/prolog/problems/lists/conc_3/en.py
@@ -6,10 +6,10 @@ slug = 'concatenate two lists'
description = '''\
<p><code>conc(L1, L2, L)</code>: the list <code>L</code> is obtained by appending the elements of <code>L2</code> to <code>L1</code>.</p>
<pre>
- ?- conc([1,2], [3,4], X).
- X = [1,2,3,4].
- ?- conc(X, [], [1,2,3]).
- X = [1,2,3].
+?- conc([1,2], [3,4], X).
+ X = [1,2,3,4].
+?- conc(X, [], [1,2,3]).
+ X = [1,2,3].
</pre>'''
hint = {}