Hello, I have this code

    NSMutableArray *insideArray = [[NSMutableArray alloc] init];
NSMutableArray *outsideArray = [[NSMutableArray alloc] init];
[insideArray addObject:@"Hello 1"];
[insideArray addObject:@"Hello 2"];
[outsideArray addObject:insideArray];
[insideArray removeAllObjects];
[insideArray addObject:@"Hello 3"];
[insideArray addObject:@"Hello 4"];
[outsideArray addObject:insideArray];

The current output is

    array(
      (
       "Hello 3",
       "Hello 4"
       ),
      (
       "Hello 3",
       "Hello 4"
       )
      )

I need a way to get the output to be

    array(
      (
       "Hello 1",
       "Hello 2"
       ),
      (
       "Hello 3",
       "Hello 4"
       )
      )

Does anyone have a solution or could see where i've gone wrong? Thanks