func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     string s;     cin >> s;     int len = s.length();     for (int i = 0; i < len; i = i + 1) {       if (s[i] !=  a  && s[i] !=  y  && s[i] !=  e  && s[i] !=  i  &&           s[i] !=  o  && s[i] !=  u  && s[i] !=  A  && s[i] !=  Y  &&           s[i] !=  E  && s[i] !=  I  && s[i] !=  O  && s[i] !=  U ) {         if (s[i] >=  A  && s[i] <=  Z ) {           s[i] = s[i] + 32;         }         cout <<  .  << s[i];       }     }     cout << endl;     return 0;   }   