func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     int n, k, i, j;     cin >> n >> k;     int a[n - k + 1];     string s;     for (i = 0; i < n - k + 1; i++) {       cin >> s;       if (s[0] ==  Y )         a[i] = 0;       else         a[i] = 1;     }     vector<string> ans;     char a1 =  a , b =  a ;     string v =   ;     i = 0;     for (i = 0; i < k; i++) {       ans.push_back(v + a1);       if (a1 ==  z ) {         v = b;         b++;         a1 =  a ;       } else         a1++;     }     if (a[0] == 1) {       ans[k - 1] = ans[0];       a1--;     }     j = 1;     for (i = 1; i < n - k + 1; i++) {       if (a[i] == 1)         ans.push_back(ans[i]);       else {         ans.push_back(v + a1);         if (a1 ==  z ) {           v = b;           b++;           a1 =  a ;         } else           a1++;       }     }     for (i = 0; i < n; i++) ans[i][0] -= 32;     for (i = 0; i < n; i++) cout << ans[i] <<    ;   }   