diff --git a/twonum.py b/twonum.py
new file mode 100644
index 0000000..1fdfd55
--- /dev/null
+++ b/twonum.py
@@ -0,0 +1,8 @@
+class Solution:
+    def twoSum(self, nums, target):
+        n = len(nums)
+        for i in range(n):
+            for j in range(i + 1, n):
+                if nums[i] + nums[j] == target:
+                    return [i, j]
+        return []  # just in case