func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, k, x, i, p;     char y;     string ch =   ;     cin >> n >> k;     for (i = 0; i < k; i++) {       p = 97 + i;       y = (char)p;       ch += y;     }     if (n == k)       cout << ch;     else {       x = n - k;       i = 0;       while (x--) {         ch += ch[i];         i++;       }       cout << ch;     }     return 0;   }   