#include <vector>
#include <iostream>
using namespace std;

long long play(int N, vector<int> A) {
    return 42;
}

// SAMPLE GRADER. DO NOT MODIFY BELOW THIS LINE

#ifndef EVAL
using namespace std;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    int N; cin >> N;

    vector<int> A(N);
    for(int &x: A) cin >> x;
    
    cout << play(N, A) << endl;
}
#endif