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-rw-r--r--prolog/problems/lists/dup_2/common.py2
-rw-r--r--prolog/problems/lists/dup_2/en.py2
2 files changed, 4 insertions, 0 deletions
diff --git a/prolog/problems/lists/dup_2/common.py b/prolog/problems/lists/dup_2/common.py
index 37a0842..7417006 100644
--- a/prolog/problems/lists/dup_2/common.py
+++ b/prolog/problems/lists/dup_2/common.py
@@ -1,3 +1,5 @@
+# coding=utf-8
+
id = 110
group = 'lists'
number = 17
diff --git a/prolog/problems/lists/dup_2/en.py b/prolog/problems/lists/dup_2/en.py
index d6aef71..f6354b3 100644
--- a/prolog/problems/lists/dup_2/en.py
+++ b/prolog/problems/lists/dup_2/en.py
@@ -1,3 +1,5 @@
+# coding=utf-8
+
id = 110
name = 'dup/2'
slug = 'duplicate the elements of a list'