diff --git a/objc-interpolate/FISAppDelegate.m b/objc-interpolate/FISAppDelegate.m
index ead0fcb..e0c3729 100644
--- a/objc-interpolate/FISAppDelegate.m
+++ b/objc-interpolate/FISAppDelegate.m
@@ -5,6 +5,26 @@
 @implementation FISAppDelegate
 
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
+   
+    
+//    NSLog(@"Dalek");
+//    NSLog(@"%@", @"Dalek");
+//    NSLog(@"%@%@%@%@%@", @"D", @"a", @"l", @"e", @"k" );
+
+//    NSLog(@"Interpolate!");
+//    NSLog(@"%@", @"Interpolate!");
+//    NSLog(@"%@%@", @"Interpolate!", @"Interpolate!");
+//    NSLog(@"%@%@%@%@", @"In", @"ter", @"po", @"late");
+//    NSLog(@"%@-%@-%@-%@", @"In", @"ter", @"po", @"late!");
+
+    NSLog(@"You are not the Doctor!");
+    NSLog(@"%@", @"You are not the Doctor!");
+    NSLog(@"%@%@%@%@%@", @"You", @"are", @"not", @"the", @"Doctor" @"!");
+    NSLog(@"%@ %@ %@ %@%@", @"You", @"are", @"not", @"the", @"Doctor" @"!");
+    NSLog(@"You are %@ %@!", @"not", @"The Doctor");
+    
+    
+    
     // Override point for customization after application launch.
     
     /*