diff --git a/Leecode/src/main/java/com/markilue/leecode/backtrace/second/T12_PermuteUnique.java b/Leecode/src/main/java/com/markilue/leecode/backtrace/second/T12_PermuteUnique.java
index 939d530..666261c 100644
--- a/Leecode/src/main/java/com/markilue/leecode/backtrace/second/T12_PermuteUnique.java
+++ b/Leecode/src/main/java/com/markilue/leecode/backtrace/second/T12_PermuteUnique.java
@@ -83,5 +83,5 @@ public class T12_PermuteUnique {
         }
 
     }
-}
+
 }