func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int arr[4];     for (int i = 0; i < 4; i++) cin >> arr[i];     string strips;     cin >> strips;     int n = strips.length();     int cal = 0;     for (int i = 0; i < n; i++) {       if (strips[i] ==  1 )         cal += arr[0];       else if (strips[i] ==  2 )         cal += arr[1];       else if (strips[i] ==  3 )         cal += arr[2];       else if (strips[i] ==  4 )         cal += arr[3];     }     cout << cal;     return 0;   }   