func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t;     string s;     getline(cin, s);     long long n = s.size(), i;     for (i = n - 1; i >= 0; i--) {       if (isupper(s[i])) {         s[i] = tolower(s[i]);       }       if (s[i] ==  ?  || s[i] ==    ) {         continue;       } else if (s[i] ==  a  || s[i] ==  e  || s[i] ==  i  || s[i] ==  o  ||                  s[i] ==  u  || s[i] ==  y ) {         cout <<  YES  << endl;         break;       } else {         cout <<  NO  << endl;         break;       }     }   }   