func_code_string: #include <bits/stdc++.h>   using namespace std;   int n;   map<int, int, greater<int> > g;   int a;   int gcd(int a, int b) {     while (b != 0) {       a %= b;       swap(a, b);     }     return a;   }   int main() {     ios::sync_with_stdio(0);     cin.tie(0);     ;     cin >> n;     for (int(i) = (0); (i) < int(n * n); ++(i)) {       cin >> a;       g[a]++;     }     vector<int> ans;     while (1) {       bool done = 0;       for (auto& x : g) {         if (x.second <= 0) continue;         x.second--;         done = 1;         for (auto every : ans) {           g[gcd(every, x.first)] -= 2;         }         ans.push_back(x.first);         g[x.first]--;         break;       }       if (!done) break;     }     for (auto y : ans) cout << y <<    ;     cin.sync();     cin.get();     return 0;   }   