#include<bits/stdc++.h>
#define int long long
using namespace std;
constexpr int mod=998244353;
int mod_pow(int a,int b){
    if(!b)return 1;
    if(b&1)return mod_pow(a,b-1)*a%mod;
    return mod_pow(a*a%mod,b/2);
}
signed main(){
    int N; cin>>N;
    cout<<mod_pow(6,N/2)<<endl;
}