#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <time.h>

#define printvi(X) printf("%s = %d\n", #X, X);

int main(void)
{
	pid_t f = fork();
	if(f == 0){
		srand(time(NULL));
		int delay = 1 + rand() % 10;
		int value = rand() % 256;
		printvi(delay);
		printvi(value);
		sleep(delay);
		return value;
	}

	int child_ret = 0;
	wait(&child_ret);
	printvi(WEXITSTATUS(child_ret));
}