#import <Foundation/Foundation.h>
#include <objc/message.h>
#include <stdio.h>

@interface Hehe : NSObject
- (void)bar;
- (void)tobehijacked:(NSString*)input;
@end

@interface Hooker : Hehe
@end

@implementation Hehe
- (void)bar {
  NSLog(@"Invoke instance method %@", self);
}
 - (void)tobehijacked:(NSString*)input {
   NSLog(@"Invoke tobehijacked method %@", input);
 }
@end

@implementation Hooker
- (void)tobehijacked:(NSString*)input {
  NSLog(@"Hijacked tobehijacked method %@ from Hooker", input);
}

- (void)bar {
  [super bar];
}   

@end