#include <stdio.h> 
#include <unistd.h>

main()
{
  int pid;
  int seq = 0;

  if( fork() == 0){
    seq = 1;
    if( fork() ==0 ){
      seq = 2;
    } else {
      wait(NULL);
    }
  } else {
    wait(NULL);
  }

  if(seq == 0)
    printf(" I am root, %d\n", getpid());
  else
    printf(" I am %d with seq %d, and my parent is %d\n", 
           getpid(), seq, getppid()); 
}