diff --git a/build/built-jar.properties b/build/built-jar.properties
index 626235a..037000a 100644
--- a/build/built-jar.properties
+++ b/build/built-jar.properties
@@ -1,4 +1,4 @@
-#Tue, 15 Dec 2020 15:47:59 +0500
+#Tue, 15 Dec 2020 15:55:56 +0500
 
 
 C\:\\Users\\Usama\\Desktop\\GitHub\\Left-Factoring=
diff --git a/build/classes/leftfactoring/GUIController.class b/build/classes/leftfactoring/GUIController.class
index dc7a2f3..387577a 100644
Binary files a/build/classes/leftfactoring/GUIController.class and b/build/classes/leftfactoring/GUIController.class differ
diff --git a/dist/LeftFactoring.html b/dist/LeftFactoring.html
index 453dfd5..77a3c27 100644
--- a/dist/LeftFactoring.html
+++ b/dist/LeftFactoring.html
@@ -4,7 +4,7 @@
     function launchApplication(jnlpfile) {
         dtjava.launch(            {
                 url : 'LeftFactoring.jnlp',
-                jnlp_content : 'PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0idXRmLTgiPz4NCjxqbmxwIHNwZWM9IjEuMCIgeG1sbnM6amZ4PSJodHRwOi8vamF2YWZ4LmNvbSIgaHJlZj0iTGVmdEZhY3RvcmluZy5qbmxwIj4NCiAgPGluZm9ybWF0aW9uPg0KICAgIDx0aXRsZT5MZWZ0RmFjdG9yaW5nPC90aXRsZT4NCiAgICA8dmVuZG9yPlVzYW1hPC92ZW5kb3I+DQogICAgPGRlc2NyaXB0aW9uPm51bGw8L2Rlc2NyaXB0aW9uPg0KICAgIDxvZmZsaW5lLWFsbG93ZWQvPg0KICA8L2luZm9ybWF0aW9uPg0KICA8cmVzb3VyY2VzPg0KICAgIDxqMnNlIHZlcnNpb249IjEuNisiIGhyZWY9Imh0dHA6Ly9qYXZhLnN1bi5jb20vcHJvZHVjdHMvYXV0b2RsL2oyc2UiLz4NCiAgICA8amFyIGhyZWY9IkxlZnRGYWN0b3JpbmcuamFyIiBzaXplPSI0OTg0IiBkb3dubG9hZD0iZWFnZXIiIC8+DQogIDwvcmVzb3VyY2VzPg0KICA8YXBwbGV0LWRlc2MgIHdpZHRoPSI4MDAiIGhlaWdodD0iNjAwIiBtYWluLWNsYXNzPSJjb20uamF2YWZ4Lm1haW4uTm9KYXZhRlhGYWxsYmFjayIgIG5hbWU9IkxlZnRGYWN0b3JpbmciID4NCiAgICA8cGFyYW0gbmFtZT0icmVxdWlyZWRGWFZlcnNpb24iIHZhbHVlPSI4LjArIi8+DQogIDwvYXBwbGV0LWRlc2M+DQogIDxqZng6amF2YWZ4LWRlc2MgIHdpZHRoPSI4MDAiIGhlaWdodD0iNjAwIiBtYWluLWNsYXNzPSJsZWZ0ZmFjdG9yaW5nLkxlZnRGYWN0b3JpbmciICBuYW1lPSJMZWZ0RmFjdG9yaW5nIiAvPg0KICA8dXBkYXRlIGNoZWNrPSJhbHdheXMiLz4NCjwvam5scD4NCg=='
+                jnlp_content : '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'
             },
             {
                 javafx : '8.0+'
@@ -24,7 +24,7 @@
                 placeholder : 'javafx-app-placeholder',
                 width : '800',
                 height : '600',
-                jnlp_content : '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'
+                jnlp_content : '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'
             },
             {
                 javafx : '8.0+'
diff --git a/dist/LeftFactoring.jar b/dist/LeftFactoring.jar
index 2465d3b..c8bed04 100644
Binary files a/dist/LeftFactoring.jar and b/dist/LeftFactoring.jar differ
diff --git a/dist/LeftFactoring.jnlp b/dist/LeftFactoring.jnlp
index 86da56e..3d868de 100644
--- a/dist/LeftFactoring.jnlp
+++ b/dist/LeftFactoring.jnlp
@@ -8,7 +8,7 @@
   </information>
   <resources>
     <j2se version="1.6+" href="http://java.sun.com/products/autodl/j2se"/>
-    <jar href="LeftFactoring.jar" size="4984" download="eager" />
+    <jar href="LeftFactoring.jar" size="4989" download="eager" />
   </resources>
   <applet-desc  width="800" height="600" main-class="com.javafx.main.NoJavaFXFallback"  name="LeftFactoring" >
     <param name="requiredFXVersion" value="8.0+"/>
diff --git a/src/leftfactoring/GUIController.java b/src/leftfactoring/GUIController.java
index 7dbe9ac..fe223d6 100644
--- a/src/leftfactoring/GUIController.java
+++ b/src/leftfactoring/GUIController.java
@@ -45,7 +45,7 @@ void commonPrefixes(String line) {
         System.out.println("Input : " + line);
         //Input : S=iEtS|iEtSes|a  1st iteration
         System.out.println("LEFT FACTORING : ");
-        output.appendText("LEFT FACTORING : ");
+        output.setText("LEFT FACTORING : ");
         StringTokenizer tokenizer = new StringTokenizer(line, "=|");
         // split grammmer on the base of equal and or operator or both