func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int q, w, e, r;     cin >> q >> w >> e >> r;     string s;     cin >> s;     unsigned long long int c = 0;     for (int i = 0; i < s.size(); i++) {       if (s[i] ==  1 ) {         c += q;       }       if (s[i] ==  2 ) {         c += w;       }       if (s[i] ==  3 ) {         c += e;       }       if (s[i] ==  4 ) {         c += r;       }     }     cout << c << endl;     return 0;   }   