diff --git a/27-240525-pass/main.py b/27-240525-pass/main.py
new file mode 100644
index 0000000..7c04302
--- /dev/null
+++ b/27-240525-pass/main.py
@@ -0,0 +1,18 @@
+class Solution:
+    def removeElement(self, nums: list[int], val: int) -> int:
+        cnt = 0
+        for num in nums:
+            if num == val: cnt+=1
+        for i in range(len(nums) - cnt):
+            if nums[i] == val:
+                for j in range(len(nums) - 1, 0, -1):
+                    if nums[j] != val:
+                        nums[i], nums[j] = (nums[j], nums[i])
+        print(nums)
+        return len(nums) - cnt
+
+nums = [3, 2, 2, 3]
+val = 3
+sol = Solution()
+print(sol.removeElement(nums, val))
+