diff --git a/E_496_NextGreaterElementI.py b/E_496_NextGreaterElementI.py
new file mode 100644
index 0000000..d2496bf
--- /dev/null
+++ b/E_496_NextGreaterElementI.py
@@ -0,0 +1,9 @@
+class Solution:
+    def nextGreaterElement(self, nums1: List[int], nums2: List[int]) -> List[int]:
+        def find(num):
+            for x in nums2[nums2.index(num):]:
+                if x>num:
+                    return x
+            return -1
+            
+        return list(map(find,nums1))
\ No newline at end of file