func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int a, b, c, d, i, sum = 0;     scanf( %d%d%d%d , &a, &b, &c, &d);     string str;     cin >> str;     for (int i = 0; i < str.length(); i++) {       if (str[i] ==  1 ) sum += a;       if (str[i] ==  2 ) sum += b;       if (str[i] ==  3 ) sum += c;       if (str[i] ==  4 ) sum += d;     }     printf( %d , sum);     return 0;   }   