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

int
main()
{
    int x = 1;

    printf("Starting\n");
    if (fork() == 0) {
        // only child executes this
        printf("Child, x = %d\n", ++x);
    } else {
        // only parent executes this
        printf("Parent, x = %d\n", --x);
    }

    // parent and child execute this
    printf("Exiting with x = %d\n", x);

    return 0;
}