A. Произведение тройки

#include <iostream>
#include <sstream>
#include <exception>
#include <cmath>
#include <unordered_set>
#include <vector>
#include <unordered_map>
#include <algorithm>
//#define pii pair <int, int>
using namespace std;


int main() {
    int n; cin >> n;
    vector <int> a(n);
    for (int&el: a) cin >> el;
    sort(a.begin(), a.end());
}