#include <sys/types.h>
#include <unistd.h>
#include <iostream>
using namespace std;
main () 
{
  int val;
  int pid, myid;

  val = 10;
  myid = getpid();
  pid = fork();

  if (myid == getpid()) val = 20;
  cout << "val = " << val << ", myid = " << myid 
       << ", pid = " << getpid() << "\n";
}