diff --git a/Top150Interview/1_Two_Sum.py b/Top150Interview/1_Two_Sum.py
index 608d96a..eec3f63 100644
--- a/Top150Interview/1_Two_Sum.py
+++ b/Top150Interview/1_Two_Sum.py
@@ -10,6 +10,14 @@ def twoSum(nums, target):
                                 #print(f'i is {nums[i]}, j is {nums[j]}')
                                 return [i,j]
         
+        #hashmap = {}
+
+        #for i in range(len(nums)):
+                #complacement = target - nums[i]
+                #if complacement in hashmap:
+                #    return [i, hashmap[complacement]]
+        #    else:
+                #hashmap[nums[i]] = i
         
 print(twoSum([2,7,11,15], 9))
 print(twoSum([3,2,4], 6))
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