/* code optim adce */
/* this can be optimized because d is not used */
/* if return 0 is changed to return b, then no optimization */
int main(void) {
	int a;
	int b;
	int c;
	int d;
	a = 1;
	b = 1;
	c = 1;
	d = 1;
	while(a < 10) {
		a = a + 1;
		d = a + b + c + d;
	}
	return 0;
}