title: How to create an NSDictionary that contains an array for every key?
body: <p><br>
  I wanted to know how (if it is possible) to create an NSDictionary that holds an NSArray for every key.</p>
  
  <p>Something like that:</p>
  
  <p>@"FirstKey"   - [0], [1], [2], [3]<br>
  @"SecondKey"  - [0], [1], [2], [3]<br>
  @"ThirdKey"   - [0], [1], [2], [3]<br>
  @"FourthKey"  - [0], [1], [2], [3]<br></p>
  
  <p>Hope you got the idea, thanks ahead!</p>