func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     long long int a[2 * n];     for (int i = 0; i < 2 * n; i++) cin >> a[i];     sort(a, a + (2 * n));     long long int s = 2e19;     ;     for (int i = 1; i < n; i++) {       s = min(s, (a[n * 2 - 1] - a[0]) * (a[n + i - 1] - a[i]));     }     s = min(s, (a[n - 1] - a[0]) * (a[n * 2 - 1] - a[n]));     cout << s;     return 0;   }   