#include<stdio.h>
#include<unistd.h> 
#include<sys/types.h>
#include<sys/wait.h>

long int fib(int n){
	if(n > 2)
		return fib(n-1) + fib(n-2);
	return 1;
}

int main(){
	pid_t result;
	result = fork();	
	printf("result = %d\n", result);
	if(result){ // We are the parent
		printf("Parent calculates fib(48) = %ld\n", fib(48));
		printf("Starting even harder calculation!  We'll wait on the child first.\n");
		wait(0);
		printf("Parent calculates fib(49) = %ld\n", fib(49));

	} else { // We are the child
		printf("Child calculates fib(45) = %ld\n", fib(45));
	}
	return 0;
}