A.cpp

#include <bits/stdc++.h>
using namespace std;

#define nl '\n'
template<typename T_vector>
void output_vector(const T_vector &v, bool add_one = false, int start = -1, int end = -1) {
    if (start < 0) start = 0;
    if (end < 0) end = int(v.size());
 
    for (int i = start; i < end; i++)
        cout << v[i] + (add_one ? 1 : 0) << (i < end - 1 ? ' ' : '\n');
}

void run_cases() {
    int n;
    cin >> n;
    vector<vector<int>> vals(3, vector<int>(n));
    for(int i=0;i<3;i++) {
        for(int j=0;j<n;j++) {
            cin >> vals[i][j];
        }
    }
    vector<int> ans(n, -1);

    ans[0] = vals[0][0];
    for(int i=1;i<n;i++) {
        for(int j=0;j<3;j++) {
            if(ans[i-1] != vals[j][i] && ans[i == n - 1 ? 0 : i + 1] != vals[j][i]) {
                ans[i] = vals[j][i];
                break;
            }
        }
    }

    output_vector(ans);
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(nullptr);

    int tests = 1;
    cin >> tests;

    for(int test = 1;test <= tests;test++) {
        run_cases();
    }
}