diff --git a/leetcode/two_sum/solution.py b/leetcode/two_sum/solution.py
index ea4c593..f635406 100644
--- a/leetcode/two_sum/solution.py
+++ b/leetcode/two_sum/solution.py
@@ -4,9 +4,16 @@ class Solution:
     # Space: O(n)
     def two_sum(self, nums: list[int], target: int) -> list[int]:
         seen: dict[int, int] = {}
+        answers: list[list[int]] = []
+
         for i, num in enumerate(nums):
             complement = target - num
             if complement in seen:
-                return [seen[complement], i]
+                answer = [seen[complement], i]
+                answers.append(answer)
             seen[num] = i
-        return []
+
+        if len(answers) > 1:
+            raise ValueError(f"Found {len(answers)} answers in the solution: {answers}")
+
+        return answers[0] if answers else []
diff --git a/leetcode/two_sum/test_solution.py b/leetcode/two_sum/test_solution.py
index a251146..de814b7 100644
--- a/leetcode/two_sum/test_solution.py
+++ b/leetcode/two_sum/test_solution.py
@@ -26,7 +26,7 @@ def setup_method(self):
             ([-3, 4, 3, 90], 0, [0, 2]),
             ([1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 2], 6, [5, 11]),
             ([2, 1, 9, 4, 4, 56, 90, 3], 8, [3, 4]),
-            ([89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99], 185, [3, 4]),
+            ([89, 90, 91, 92, 93, 97, 98, 99], 185, [3, 4]),
             ([-1000000000, 1000000000], 0, [0, 1]),
             ([0, 1], 1, [0, 1]),
             ([1, 2], 5, []),
diff --git a/leetcode_py/cli/resources/leetcode/json/problems/two_sum.json b/leetcode_py/cli/resources/leetcode/json/problems/two_sum.json
index 86875e0..8910120 100644
--- a/leetcode_py/cli/resources/leetcode/json/problems/two_sum.json
+++ b/leetcode_py/cli/resources/leetcode/json/problems/two_sum.json
@@ -77,7 +77,7 @@
                         "([-3, 4, 3, 90], 0, [0, 2])",
                         "([1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 2], 6, [5, 11])",
                         "([2, 1, 9, 4, 4, 56, 90, 3], 8, [3, 4])",
-                        "([89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99], 185, [3, 4])",
+                        "([89, 90, 91, 92, 93, 97, 98, 99], 185, [3, 4])",
                         "([-1000000000, 1000000000], 0, [0, 1])",
                         "([0, 1], 1, [0, 1])",
                         "([1, 2], 5, [])",