func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, result = 0;     {       cin >> n;       float init = sqrt(n);       if (init == floor(init))         cout << init * 4 << endl;       else {         int init2 = floor(init);         n = n - init2 * init2;         result = init2 * 4;         if (n > init2) {           int temp1 = n / 2;           result = result + (temp1 + 1) * 2 - temp1 * 2;           int temp2 = n - n / 2;           result = result + (temp2 + 1) * 2 - temp2 * 2;         } else           result = result + (n + 1) * 2 - n * 2;         cout << result << endl;       }     }     return 0;   }   