diff --git a/problems/leet_258.py b/problems/leet_258.py
new file mode 100644
index 0000000..e795e43
--- /dev/null
+++ b/problems/leet_258.py
@@ -0,0 +1,15 @@
+# https://leetcode.com/problems/add-digits/
+# Runtime: 0 ms, faster than 100.00% of C online submissions for Add Digits.
+
+class Solution:
+    def addDigits(self, num: int) -> int:
+        if(num==0):
+            return 0
+        if(num%9==0):
+            return 9
+        return num%9
+        
+
+s = Solution()
+number = 38
+print(s.addDigits(number))