diff --git a/Chapter01/P02_FirstNonRepeatedCharacter/src/modern/challenge/Main.java b/Chapter01/P02_FirstNonRepeatedCharacter/src/modern/challenge/Main.java
index bafb620a..2b48d7fd 100644
--- a/Chapter01/P02_FirstNonRepeatedCharacter/src/modern/challenge/Main.java
+++ b/Chapter01/P02_FirstNonRepeatedCharacter/src/modern/challenge/Main.java
@@ -3,7 +3,7 @@
 import java.util.concurrent.TimeUnit;
 
 public class Main {
-
+//haa
     private static final String TEXT = "My high school, the Illinois Mathematics and Science Academy, "
             + "showed me that anything is possible and that you're never too young to think big. "
             + "At 15, I worked as a computer programmer at the Fermi National Accelerator Laboratory, "