diff --git a/objc-interpolate-001-prework-ios b/objc-interpolate-001-prework-ios
new file mode 160000
index 0000000..242b67e
--- /dev/null
+++ b/objc-interpolate-001-prework-ios
@@ -0,0 +1 @@
+Subproject commit 242b67e0103cc708a386fa9d204351916621942a
diff --git a/objc-interpolate/FISAppDelegate.m b/objc-interpolate/FISAppDelegate.m
index ead0fcb..7645736 100644
--- a/objc-interpolate/FISAppDelegate.m
+++ b/objc-interpolate/FISAppDelegate.m
@@ -7,11 +7,18 @@ @implementation FISAppDelegate
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
     // Override point for customization after application launch.
     
-    /*
-     
-     * Write your code here!
-     
-     */
+
+    
+    
+    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");
+    
+    
+    
+    
     
     // Do not alter
     return YES;  //