#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.

    NSMutableArray *array1 = [NSMutableArray array];
    [array1 addObject:@"111"];
    [array1 addObject:@"222"];
    [array1 addObject:@"333"];

    NSMutableArray *array2 = [NSMutableArray array];
    [array2 addObject:@"AAA"];
    [array2 addObject:@"BBB"];
    [array2 addObject:@"CCC"];

    NSMutableArray *array3 = [NSMutableArray array];
    [array3 addObject:@"@@@"];
    [array3 addObject:@"###"];
    [array3 addObject:@"$$$"];

    NSMutableArray *array4 = [NSMutableArray array];
    [array4 addObject:array1];
    [array4 addObject:array2];
    [array4 addObject:array3];

    for (NSMutableArray *array in array4) {
        for (NSString *str in array) {
            NSLog(@"%@", str);
        }
        NSLog(@"--------------------------------");
    }
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end