#include<bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
#define all(x) x.begin(), x.end()
#define rep(i, limit) for (int i = 0; i < (int)limit; i++)
constexpr char nl = '\n';
constexpr int INF = 1'000'000'000;
constexpr ll LINF = 2'000'000'000'000'000'000LL;
template<typename T> bool chmin(T& a, T b){if(a > b){a = b; return true;} return false;}
template<typename T> bool chmax(T& a, T b){if(a < b){a = b; return true;} return false;}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int Q;cin >> Q;
    for(;Q--;){
        int N;cin >> N;
        if(N == 2){
            cout << -1 << nl;
            continue;
        }
        vector<int>C(N),R(N);
        rep(i,N)cin >> R[i];
        rep(i,N)cin >> C[i];

        vector<vector<int>>ans(N+1,vector<int>(N+1));

        for(int i = 0; i < N; i++)for(int j = 0; j < N; j++){
            if(min(C[j],R[i]) == 1 && max(C[j],R[i]) == N)ans[i][j] = N;
            else ans[i][j] = min(C[j],R[i]);
        }



        rep(i,N){
            rep(j,N){
                cout << ans[i][j] << " ";
            }
            cout << nl;
        }
    }
}