fn main() {
	let mut s = String::new();
	std::io::stdin().read_line(&mut s).ok();
	let mut n = s.trim().parse::<u64>().unwrap() / 2;
	let (mut a, mut r, d) = (1u64, 6, 998244353);
	while n > 0 {
		if n & 1 == 1 {
			a = a * r % d
		}
		r = r * r % d;
		n >>= 1;
	}
	println!("{a}")
}