diff --git a/Chapter01/P01_CountDuplicateCharacters/src/modern/challenge/Main.java b/Chapter01/P01_CountDuplicateCharacters/src/modern/challenge/Main.java
index 8351d51..7d186b5 100644
--- a/Chapter01/P01_CountDuplicateCharacters/src/modern/challenge/Main.java
+++ b/Chapter01/P01_CountDuplicateCharacters/src/modern/challenge/Main.java
@@ -68,4 +68,7 @@ private static void displayExecutionTime(long time) {
                 TimeUnit.MILLISECONDS.convert(time, TimeUnit.NANOSECONDS) + " ms)");
     }
 
+
+    
+
 }
\ No newline at end of file