// using fork()

#include <iostream>
#include <unistd.h>

using namespace std;

int main()
{
	int id = fork();  // create another process
	if(id == 0)	// child-process
	{
		cout << "Child ps!\n";
		exit(0);
	}
	cout << "Parent ps.\n";
	sleep(12);
	return 0;
}