diff --git a/zeta_python/completed/28357.py b/zeta_python/completed/28357.py
new file mode 100644
index 0000000..7b48a93
--- /dev/null
+++ b/zeta_python/completed/28357.py
@@ -0,0 +1,19 @@
+def X(N, K, A) -> int:
+    A.sort()
+    start = 0
+    end = max(A)
+    mid = start
+    while start < end:
+        mid = (start + end) // 2
+        w = sum(x - mid for x in A if x > mid)
+        if w > K:
+            start = mid + 1
+        else:
+            end = mid
+    return start
+
+
+if __name__ == "__main__":
+    N, K = map(int, input().split())
+    A = list(map(int, input().split()))
+    print(X(N, K, A))