func_code_string: #include <bits/stdc++.h>   using namespace std;   long long int fpow(long long int n, long long int k,                      long long int p = 1000000007) {     long long int r = 1;     n = n % p;     while (k > 0) {       if (k & 1) {         r = (r * n) % p;       }       k = k >> 1;       n = (n * n) % p;     }     return r;   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     long long int n;     cin >> n;     if (n <= 9) {       cout << 1 <<   n ;       cout << n;     } else {       long long int ans = -1;       for (long long int i = 1; i <= 9; i++) {         if (n % i == 0) ans = i;       }       cout << n / ans <<   n ;       for (long long int i = 1; i <= n / ans; i++) cout << ans <<    ;     }     return 0;   }   