/* Return the largest element from array `a` of length `l` */
define max(a[], l) {
	auto m, i
	for (i = 0; i < l; i++) {
		if (a[i] > m)
			m = a[i]
	}
	return m
}

/* Return the kilometers traveled by a raindeer that flys with speed `s` km/s
 * for `t` seconds before needing to rest for `r` seconds.
 */
define calc(s, t, r) {
	auto a, d
	while (d + t <= 2503) {
		a += s * t
		d += t + r
	}
	if (d < 2503)
		a += s * (2503 - d)
	return a
}