using System;
using System.Collections.Generic;
using System.Collections;
using System.Collections.Specialized;
using System.Linq;
using System.Text;
using System.IO;
using System.Reflection;
using static System.Math;
using System.Numerics;
static class Program{
const int mod=998244353;
static void Main(){
Sc sc=new Sc();
var p=sc.I;
var a=sc.Ia2;
var b=sc.Ia2;
if(p==2){
Console.WriteLine(a[1]*(Mint)b[1]);
return;
}
long g=Prm(p),f=g;
var h=new int[p];
for(int i = 1;i
0){
if((e&1)>0){r*=x;r%=mod;}
x=(x*x)%mod;
e>>=1;
}
return r;
}
static int Prm(int p){
var pf=new Pf(p-1);
var li=new List();
pf.Get((k,v)=>{li.Add((p-1)/(int)k);});
int a=2;
f:
for(int i = 0;i0){
if((e&1)>0){r*=x;r%=p;}
x=x*x%p;
e>>=1;
}
return r;
}
}
}
public struct Mint{
const int mod=998244353;
private long d;
public Mint(long d){this.d=d;}
public static implicit operator Mint(long d){return new Mint(d%mod);}
public static explicit operator long(Mint d){return d.d;}
public override string ToString(){return d.ToString();}
public static Mint operator+(Mint a,long b){a.d=(a.d+b)%mod;return a;}
public static Mint operator+(Mint a,Mint b){a.d=(a.d+b.d)%mod;return a;}
public static Mint operator-(Mint a,long b){a.d=(mod+a.d-b)%mod;return a;}
public static Mint operator-(Mint a,Mint b){a.d=(mod+a.d-b.d)%mod;return a;}
public static Mint operator*(Mint a,long b){a.d=(a.d*b)%mod;return a;}
public static Mint operator*(Mint a,Mint b){a.d=(a.d*b.d)%mod;return a;}
public static Mint operator/(Mint a,long b){a.d=(a.d*Mi(b))%mod;return a;}
public static Mint operator/(Mint a,Mint b){a.d=(a.d*Mi(b.d))%mod;return a;}
public static bool operator==(Mint a,long b){return (long)a==b;}
public static bool operator!=(Mint a,long b){return (long)a!=b;}
public override bool Equals(object obj){return false;}
public override int GetHashCode(){return 0;}
public static long Mi(long a){
a=(a+mod)%mod;
long b=mod,u=1,v=0;
while(b>0){
long t=a/b;
a-=t*b;(a,b)=(b,a);
u-=t*v;(u,v)=(v,u);
}
u%=mod;
if(u<0){u+=mod;}
return u%mod;
}
}
public class Pf{
public Dictionary hs=new Dictionary();
public Pf(long n){
if(n%2==0){
int p=0;
while((n&1)==0){n>>=1;p++;}
hs.Add(2,p);
}
var q=(int)Sqrt(n)+1;
for(int i=3;n!=1&&i f){
foreach(var e in hs){f(e.Key,e.Value);}
}
}
static class Ex{
private static long[] ga1=new long[24],ga2=new long[24];
private const int mod=998244353;
public static int[] Fft(int[] a,int[] b){
int m=1,p=0;
while(m0;i--) {
ga1[i]=ga1[i+1]*ga1[i+1]%mod;
ga2[i]=ga2[i+1]*ga2[i+1]%mod;
}
Dft(aa,p);
Dft(ba,p);
for(int i = 0;i>k&1)<<(h-1-k);}
if(i>k&1)<<(h-1-k);}
if(i0){
int t=a/b;
a-=t*b;(a,b)=(b,a);
u-=t*v;(u,v)=(v,u);
}
u%=mod;
if(u<0){u+=mod;}
return u%mod;
}
}
public class Sc{
public int I{get{return int.Parse(Console.ReadLine());}}
public long L{get{return long.Parse(Console.ReadLine());}}
public double D{get{return double.Parse(Console.ReadLine());}}
public string S{get{return Console.ReadLine();}}
public int[] Ia{get{return Array.ConvertAll(Console.ReadLine().Split(),int.Parse);}}
public long[] La{get{return Array.ConvertAll(Console.ReadLine().Split(),long.Parse);}}
public double[] Da{get{return Array.ConvertAll(Console.ReadLine().Split(),double.Parse);}}
public string[] Sa{get{return Console.ReadLine().Split();}}
public object[] Oa{get{return Console.ReadLine().Split();}}
public int[] Ia2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),int.Parse);}}
public int[] Ia3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),int.Parse);}
public int[] Ia3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),int.Parse);}
public long[] La2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),long.Parse);}}
public long[] La3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),long.Parse);}
public long[] La3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),long.Parse);}
public double[] Da2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),double.Parse);}}
public double[] Da3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),double.Parse);}
public double[] Da3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),double.Parse);}
public T[] Arr(int n,Func f){var a=new T[n];for(int i=0;i(int n,Func f){var a=new T[n];for(int i=0;i(int n,Func f){var a=new T[n];for(int i=0;i(int n,Func f){var a=new T[n];for(int i=0;i