Untitled

#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define ldb long double
#define x first
#define y second
#define p pair<ll, ll>
#define vt vector<ll> 
#define pb push_back
#define all(x) x.begin(), x.end()
#define tp pair<ll, pair<ll, ll>>
#define fi first
#define se second.first
#define th second.second

const long long MOD = 1000000007;
const long double PI = 3.141592653589793238462643383279502884;
const long long INF = 1e18;

void solve(){
    ll n, q;
    cin >> n >> q;
    vt a(n);
    for(auto &it:a) cin >> it;
    map<ll, ll> m;
    for(int i = 0; i < n; i++) m[a[i]] = INF;
    for(int i = 0; i < n; i++) {
        m[a[i]] = min(m[a[i]], ll(i + 1));
    }
    while(q--) {
        ll k;
        cin >> k;
        cout << m[k] << '\n';
    }
}

int main (){
	#ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    #endif
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    
    int q = 1;
    cin >> q;
    while(q--){
        solve();
    }
	return 0;	
}