#include <stddef.h>
#include <stdio.h>

size_t    a, b, c;
ptrdiff_t d, e, f;


int main()
{
    printf("a = %zu\n", a);
    printf("b = %zu\n", b);
    printf("c = %zu\n", c);

    // change the format string to correctly output variables of type ptrdiff_t

    printf("d = %zu\n", d);
    printf("e = %zu\n", e);
    printf("f = %zu\n", f);

    // output the addresses of a, b, ....

    // decrement a and d  by one

    // output a and d

    return 0;
}