func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     string s;     cin >> s;     string a(s);     int n;     cin >> n;     for (int i = 0; i < int(s.size()); ++i) {       if (isupper(s[i])) {         s[i] -=  A ;         s[i] +=  a ;       }       if (s[i] <  a  + n) {         a[i] = s[i] -  a  +  A ;       } else         a[i] = s[i];     }     cout << a;     return 0;   }   