t.cpp

#include <iostream>
#include <vector>
using namespace std;
int main(){

    int T;
    cin >> T;

    while(T--){
        bool found[200001] = {0};
        int n,k;
        cin >> n >> k;

        int str[n];

        for(int i=0;i<n;i++){
            cin >> str[i];
        }

        int rank[n];
        for(int i=0;i<n;i++){
            int r;
            cin >> r;
            rank[r-1] = str[i];
        }

        for(int i=0;i<n;i++){
            if(!found[rank[i]]){
                cout << rank[i] << " ";
                k--;
            }
            found[rank[i]] = true;
            if(k==0) break;
        }

        for(int i=1;i<=n;i++){
            if(!found[i]){
                cout << i << " ";
                k--;
            }
            if(k==0)break;
        }

        cout << endl;

        
    }

    return 0;
}