What is the output of the below code?

void exit_handler1();   
void exit_handler2();    
int main() 
{     
	int pid;        
	atexit(exit_handler1);      
	atexit(exit_handler2);     
	pid = fork();       
	if(pid == 0) 
	{        
		_exit(0);      
        } 
        else 
	{          
		sleep(2);            
		exit(0);     
	}     
	return 0;    
}