#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>

int main(int argc, char* argv[]) {
    int n = 5;
    // int* a_n = &n;

    //int  a_n = &n;   // WEIRD!!!  Don't do this in your real code.
    long  a_n = (long)(&n);   // WEIRD!!!  Don't do this in your real code.

    // long and an int* are both 8-byte (64-bit) integer types.
    //
    // Using an int* ensures that gcc knows what to do with &▒ and *▒.
    // It ensures that if a_n is an int*, then *a_n is an int, &a_n is an int**, etc.
    
    return EXIT_SUCCESS;
}
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