diff --git a/src/Factorial.jas b/src/Factorial.jas
index 3a9b9f5..41ba15f 100644
--- a/src/Factorial.jas
+++ b/src/Factorial.jas
@@ -44,25 +44,19 @@
 .end method
 
 .method public static main([Ljava/lang/String;)V
-    .limit locals   3
+    .limit locals   2
     .limit stack    4
     ; parse cli args to int
     aload 0
-    aaload 0
+    bipush 0
+    aaload
     invokestatic    java/lang/Integer/parseInt(Ljava/lang/String;)I
     istore 1
 
-    ; format
-    iload 1
-    ldc "! = "
-    iload 1
-    invokestatic    Factorial/factorial(I)I ; call factorial
-    invokevirtual   java/lang/String/format(ILjava/lang/String;I)I
-    astore 2
-
     ; output
     getstatic       java/lang/System/out Ljava/io/PrintStream;
-    aload 2         ; load formatted str
-    invokevirtual   java/io/PrintStream/println(Ljava/lang/String;)V 
+    iload 1
+    invokestatic    Factorial/factorial(I)I ; call factorial
+    invokevirtual   java/io/PrintStream/println(I)V 
     return
 .end method