#pragma GCC optimize(2)
#include<bits/stdc++.h>
#define endl '\n'
using namespace std;
using ll=long long;

const int MOD=998244353;
struct modint{
	int x;
	modint(ll x=0):x(x%MOD){}
	int get(){return x;}
	modint operator+(const modint &p)const{return modint(x+p.x);}
	modint operator-(const modint &p)const{return modint(x-p.x+MOD);}
	modint operator*(const modint &p)const{return modint((ll)x*p.x);}
	modint operator/(const modint &p)const{return *this*p.inverse();}
	void operator+=(const modint &p){x+=p.x;if(x>=MOD)x-=MOD;}
	void operator-=(const modint &p){x-=p.x;if(x<0)x+=MOD;}
	void operator*=(const modint &p){x=(ll)x*p.x%MOD;}
	void operator/=(const modint &p){*this=*this/p;}
	modint inverse()const{
		int a=x,b=MOD,x=1,y=0;
		while(b){
		int t=a/b;
		a-=t*b;swap(a,b);
		x-=t*y;swap(x,y);
		}
		if(x<0)x+=MOD;
		return x;
	}
};

const int N=6e5+5;
struct strHash{
  const int p1=13331,p2=13331;
  const int M1=1e9+7,M2=1e9+9;
  ll hash1[N],hash2[N];
  ll pw1[N]={1},pw2[N]={1};
  void inpw(){
    for(int i=1;i<N;++i){
      pw1[i]=(pw1[i-1]*p1)%M1;
      pw2[i]=(pw2[i-1]*p2)%M2;
    }
  }
  void init(string &s){
    int n=s.size();
    for(int i=0;i<n;++i){
      hash1[i+1]=(hash1[i]*p1%M1+s[i]-'0'+1)%M1;
      hash2[i+1]=(hash2[i]*p2%M2+s[i]-'0'+1)%M2;
    }
  }
  pair<ll,ll> gao(int l,int r){
    return {(hash1[r+1]+M1-hash1[l]*pw1[r-l+1]%M1)%M1,(hash2[r+1]+M2-hash2[l]*pw2[r-l+1]%M2)%M2};
  }
}hq,hr;
int n;
int check(int ql,int qr,int rl,int rr){
	if(rl>rr)return 1;
	if(ql<0||qr>=n||rl<0||rr>=2*n)return 0;
	return hq.gao(ql,qr)==hr.gao(rl,rr);
}
signed main() {
	ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	hq.inpw(),hr.inpw();
	int T;cin>>T;
	for(;T;T--){
		cin>>n;
		vector<int>P(n),Q(n),R(2*n);
		for(auto &it:P)cin>>it;
		for(auto &it:Q)cin>>it;
		for(auto &it:R)cin>>it;
		string s;
		for(auto it:Q)s+=it+'0';
		hq.init(s);
		s="";
		for(auto it:R)s+=it+'0';
		hr.init(s);
		sort(s.begin(),s.end());
		int f=0;
		for(int i=0;i<2*n;++i){
			if(s[i]!=(i+2)/2+'0')f=1;
		}
		if(f==1){
			cout<<"0\n";
			continue;
		}
		vector occurR(2,vector(n+1,-1));
		for(int i=0;i<2*n;++i){
			int x=R[i];
			if(occurR[0][x]==-1)occurR[0][x]=i;
			else occurR[1][x]=i;
		}
		vector dp(2,vector(n,(modint)0));
		int ind=occurR[0][P[0]]-1;
		if(ind<0||(ind<n&&hq.gao(0,ind)==hr.gao(0,ind)))dp[0][0]=1;
		ind=occurR[1][P[0]]-1;
		if(ind<0||(ind<n&&hq.gao(0,ind)==hr.gao(0,ind)))dp[1][0]=1;
		for(int i=1;i<n;++i){
			for(int j=0;j<2;++j){
				int r=occurR[j][P[i]];
				for(int k=0;k<2;++k){
					int l=occurR[k][P[i-1]];
					if(l>=r)continue;
					if(check(l-i+1,r-i-1,l+1,r-1))
						dp[j][i]+=dp[k][i-1];
				}
			}
		}
		modint ans;
		for(int i=0;i<2;++i){
			int l=occurR[i][P[n-1]],r=2*n-1;
			if(check(l-n+1,n-1,l+1,r)){
				ans+=dp[i][n-1];
			}
		}
		cout<<ans.x<<endl;
	}
	return 0;
}
// init?
// var->0?
// infinite dfs?
// out of bound?
// max_element / min_element?

answer.code: In function ‘int main()’:
answer.code:86:24: error: missing template arguments before ‘occurR’
   86 |                 vector occurR(2,vector(n+1,-1));
      |                        ^~~~~~
answer.code:89:28: error: ‘occurR’ was not declared in this scope
   89 |                         if(occurR[0][x]==-1)occurR[0][x]=i;
      |                            ^~~~~~
answer.code:92:24: error: missing template arguments before ‘dp’
   92 |                 vector dp(2,vector(n,(modint)0));
      |                        ^~
answer.code:93:25: error: ‘occurR’ was not declared in this scope
   93 |                 int ind=occurR[0][P[0]]-1;
      |                         ^~~~~~
answer.code:94:65: error: ‘dp’ was not declared in this scope
   94 |                 if(ind<0||(ind<n&&hq.gao(0,ind)==hr.gao(0,ind)))dp[0][0]=1;
      |                                                                 ^~
answer.code:96:65: error: ‘dp’ was not declared in this scope
   96 |                 if(ind<0||(ind<n&&hq.gao(0,ind)==hr.gao(0,ind)))dp[1][0]=1;
      |                                                                 ^~
answer.code:104:49: error: ‘dp’ was not declared in this scope
  104 |                                                 dp[j][i]+=dp[k][i-1];
      |                                                 ^~
answer.code:111:48: error: ‘r’ was not declared in this scope
  111 |                         if(check(l-n+1,n-1,l+1,r)){
      |                                                ^
answer.code:112:38: error: ‘dp’ was not declared in this scope
  112 |                                 ans+=dp[i][n-1];
      |                                      ^~