diff --git a/apr_longchallenge/HappyNumber b/apr_longchallenge/HappyNumber
new file mode 100644
index 0000000..d5773d5
--- /dev/null
+++ b/apr_longchallenge/HappyNumber
@@ -0,0 +1,8 @@
+class Solution:
+    def numJewelsInStones(self, J: str, S: str) -> int:
+        num=0
+        list1=[x for x in J]
+        for i in S:
+            if i in list1:
+                num+=1
+        return num