func_code_string: #include <bits/stdc++.h>   using namespace std;   void fast() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);   }   long long max(long long num) {     long long max = 1, rem;     while (num > 0) {       rem = num % 10;       num /= 10;       if (rem > max) {         max = rem;       }     }     return max;   }   int main() {     fast();     int n;     cin >> n;     vector<long long> vect(n + 1);     long long i, count = 0;     for (i = 1; i <= n; i++) {       vect[i] = 1;     }     for (i = 10; i <= n; i++) {       vect[i] = vect[i - max(i)] + 1;     }     cout << vect[n] <<   n ;     ;     return 0;   }   