func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios::sync_with_stdio(false);     cin.tie(nullptr);     cout.tie(nullptr);     int n;     cin >> n;     int r, c;     int diff = 1000000;     for (int a = 1; a * a <= n; a++)       for (int b = a; a * b <= n; b++)         if (a * b == n && b - a < diff) r = a, c = b;     cout << r <<     << c;   }   