static double pi = 3.14;

/* addition */
int add(int a, int b) {
	return a+b;
}

static double e = 2.71;

/* multiplication of
 *
 *  a*b
 */
int mul(int a, int b)
{
	return a*b;
}

static double sqrt2 = 1.41;

int
div(int a, int b)
{
	return a/b;
}