diff --git a/Python/04. Sets/014. Introduction to Sets b/Python/04. Sets/014. Introduction to Sets
new file mode 100644
index 0000000..608b717
--- /dev/null
+++ b/Python/04. Sets/014. Introduction to Sets	
@@ -0,0 +1,9 @@
+def average(array):
+    distinct_heights = set(array)
+    return round(sum(distinct_heights) / len(distinct_heights), 3)
+
+if __name__ == '__main__':
+    n = int(input())
+    arr = list(map(int, input().split()))
+    result = average(arr)
+    print(result)