// NOTE: it is recommended to use this even if you don't understand the following code.

#include <fstream>
#include <iostream>
#include <vector>

using namespace std;

int main() {
    // uncomment the following lines if you want to read/write from files
    // ifstream cin("input.txt");
    // ofstream cout("output.txt");

    int N;
    cin >> N;
    
    vector<int> V(N);
    for (int i = 0; i < N; i++) {
        cin >> V[i];
    }
    
    vector<int> A(N), B(N);
    for (int i = 1; i < N; i++) {
        cin >> A[i] >> B[i];
    }
    
    int Q;
    cin >> Q;
    
    vector<int> X(N), Y(N);
    for (int i = 0; i < Q; i++) {
        cin >> X[i] >> Y[i];
    }


    // insert your code here ...
    
    for (int i = 0; i < Q; i++) {

        // ... and here

        cout << 42 << endl; // print the result
    }

    return 0;
}