#include <iostream>
#include <vector>

using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int t;
    cin >> t;

    while (t--) {
        int n;
        cin >> n;

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

        // Output the permutation p itself as q
        for (int i = 0; i < n; ++i) {
            cout << p[i] << (i == n - 1 ? '\n' : ' ');
        }
    }

    return 0;
}