#include <stdio.h>
#include <stdlib.h>
#include <limits.h>

long fun(long x, long y, long z)
{
    long t = x * y - z;
    return t;
}

long read_store_ll(long new_val, long *dst)
{
    long old_val = *dst;
    *dst = new_val;
    return old_val;
}

int read_store_ii(int new_val, int *dst)
{
    int old_val = *dst;
    *dst = new_val;
    return old_val;
}

long read_store_il(int new_val, long *dst)
{
    long old_val = *dst;
    long new_val_l = (long) new_val;
    *dst = new_val_l;
    return old_val;
}

int read_store_li(long new_val, int *dst)
{
    int old_val = *dst;
    int new_val_i = (int) new_val;
    *dst = new_val_i;
    return old_val;
}

void set_tmin_i(int *dst)
{
    *dst = INT_MIN;
}

void set_minus72(long *dst)
{
    *dst = -72;
}

void set_tmin_l(long *dst)
{
    *dst = LONG_MIN;
}

void swap1(long *xp, long *yp)
{
    long t0 = *xp;
    long t1 = *yp;
    *yp = t0;
    *xp = t1;
}

long choose(int c)
{
    long t[2] = {-3, 5};
    c &= 0x1;
    return t[c];
}

long arith(long x, long y, long z)
{
    long t1 = x-y;
    long t2 = z+t1;
    long t3 = x+4;
    long t4 = y * 48;
    long t5 = t3 + t4;
    long rval = t2 * t5;
    return rval;
}

long logical1(long x, long y)
{
    long t1 = x^y;
    long t2 = t1 >> 17;
    long mask = (-1L << 17) + 7;
    long rval = t2 & mask;
    return rval;
}

long logical2(long x, long y)
{
    long t1 = x^y;
    long t2 = t1 >> 17;
    long mask = (1L << 13) - 7;
    long rval = t2 & mask;
    return rval;
}

long mystery(long x, long y, long z)
{
  long t1 = x * z;
  long t2 = 5 * y;
  long t3 = t1 & t2;
  long rval = ~t3;
  return rval;
}

int main(int argc, char *argv[])
{
    long x, y, z, f;
    if (argc != 4) {
	printf("Usage: %s x y z\n", argv[0]);
    }
    x = strtoul(argv[1], NULL, 0);    
    y = strtoul(argv[2], NULL, 0);    
    z = strtoul(argv[3], NULL, 0);
    f = fun(x, y, z);
    printf("f(%ld, %ld, %ld) --> %ld\n", x, y, z, f);
    
    printf("y = %ld; ", y);
    z = read_store_ll(x, &y);
    printf("read_store_ll(%ld, &y) --> %ld;  y = %ld\n",
	   x, z, y);
    return 0;
}