#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

int main() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    int t;
    cin >> t;
    while (t--) {
        int n;
        cin >> n;
        vector<int> r(n);
        vector<int> c(n);
        rep(i, n) cin >> r[i], r[i]--;
        rep(i, n) cin >> c[i], c[i]--;
        vector ans(n, vector<int>(n, -1));
        if (n <= 2) {
            cout << -1 << endl;
            continue;
        } else if (n >= 4) {
            rep(i, n) rep(j, n) {
                if (i != j) {
                    ans[i][j] = r[i];
                }
            }
            rep(i, n) rep(j, n) {
                if (ans[i][j] == -1) {
                    ans[i][j] = c[j];
                }
            }
        } else {
            rep(i, n) rep(j, n) {
                if ((r[i] + 1) % n == c[j])
                    ans[i][j] = c[j];
                else
                    ans[i][j] = r[i];
            }
        }
        rep(i, n) {
            rep(j, n) {
                cout << ans[i][j] + 1 << " ";
            }
            cout << endl;
        }
    }
    return 0;
}