// No.1476 esreveR dna esreveR
package main

import (
	"fmt"
)

const NMAX = 1_000_000_000_000_000_000

const MOD = 998244353

func main() {
	var N int
	fmt.Scan(&N)

	m := modpow(6, N/2, MOD)
	fmt.Println(m)
}

func modpow(a int, n int, mod int) int {
	m := 1
	for n > 0 {
		if n&1 == 1 {
			m = (m * a) % mod
		}
		a = (a * a) % mod
		n >>= 1
	}
	return m
}