diff --git a/sh/tests/solutions/concat_string.py b/sh/tests/solutions/concat_string.py
new file mode 100644
index 00000000..6d771304
--- /dev/null
+++ b/sh/tests/solutions/concat_string.py
@@ -0,0 +1,2 @@
+def concat(string1, string2):
+    return string1 + ", " + string2