#include<bits/stdc++.h>
#define int long long
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
const long long N=1e6+10,mod=998244353,INF=1e15;
ll n,m,k,a[N],b[N],sum[N],fa[N],id[N],lst[N];
bool st[N];
int x[N];
void f(int u,int l,int r,int L,int R)
{
	if(l>r)return;
	if(l==r)
	{
		fa[a[l]]=u;return;
	}
	if(a[l]!=b[L])
	{
		fa[a[l]]=u,fa[b[L]]=u;
		int idx1=-1,idx2=-1;
		for(int i=l;i<=r;i++)if(a[i]==b[L])
		{
			idx1=i;break;
		}
		for(int i=L;i<=R;i++)if(b[i]==a[l])
		{
			idx2=i;break;
		}
		f(a[l],l+1,idx1-1,idx2+1,R),f(b[L],idx1+1,r,L+1,idx2-1);
	}
	else{
		int res=0;
		int idx1=-1,idx2=-1;
		for(int i=l,j=L;i<=r;i++,j++)
		{
			res^=x[a[i]];
			res^=x[b[j]];
			if(res==0&&a[i+1]==b[j+1])
			{
				idx1=i+1,idx2=j+1;
				break;
			}
		}
		if(idx1!=-1)
		{
			fa[a[l]]=u,fa[a[idx1]]=u;
			f(a[l],l+1,idx1-1,L+1,idx2-1),f(a[idx1],idx1+1,r,idx2+1,R);
		}
		else{
			fa[a[l]]=u;
			f(a[l],l+1,r,L+1,R);
		}
	}
}
void solve()
{
	cin>>n;
	for(int i=1;i<=n;i++)fa[i]=0;
	for(int i=1;i<=n;i++)cin>>a[i],id[a[i]]=i;
	for(int i=1;i<=n;i++)lst[i]=-1;
	for(int i=1;i<=n;i++)cin>>b[i];
	for(int i=1;i<=n;i++)x[i]=rand();
	f(a[1],2,n,2,n);
	for(int i=1;i<=n;i++)cout<<fa[i]<<' ';cout<<endl;
}
signed main()
{
    cin.tie(0), cout.tie(0), ios::sync_with_stdio(false);
    int T;cin>>T;
    while(T--)solve();
    return 0;
}