func_code_string: #include <bits/stdc++.h>   using namespace std;   string a, ans;   int b;   string c;   int main() {     while (cin >> a >> b) {       for (int i = 0; i < a.size(); i++)         if (a[i] >=  A  && a[i] <=  Z ) a[i] = a[i] -  A  +  a ;       for (int i = 0; i < a.size(); i++) {         if ((int)a[i] < b + 97) {           a[i] = a[i] -  a  +  A ;         }       }       cout << a << endl;     }     return 0;   }   