func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, k, op, i, index = 0;     cin >> n >> k;     char ss[n - 1];     op = k;     i = 97;     while (op--) {       ss[index] = char(i);       i++;       index++;     }     if (n - k != 0) {       for (int d = 0; d < n - k; d++) {         ss[index] = ss[d];         index++;       }     }     for (int c = 0; c < n; c++) cout << ss[c];   }   