#include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false), cin.tie(0), cout.tie(0);     long long int num, ans = INT_MAX, temp, multi1 = INT_MAX, multi2 = INT_MAX;     cin >> num;     for (long long int i = 1; i <= sqrt(num); i++) {       if (num % i == 0) {         temp = num / i;         if (abs(i - temp) < ans) ans = abs(i - temp), multi1 = i, multi2 = temp;       }     }     cout << multi1 <<     << multi2;     return 0;   }   