func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long int n, m, ans;     int d;     char c;     cin >> n >> c;     m = n - 1;     if (c ==  f ) {       d = 1;     }     if (c ==  e ) {       d = 2;     }     if (c ==  d ) {       d = 3;     }     if (c ==  a ) {       d = 4;     }     if (c ==  b ) {       d = 5;     }     if (c ==  c ) {       d = 6;     }     if (m % 4 == 0 || m % 4 == 2)       ans = (m / 4) * 16 + d;     else       ans = (m / 4) * 16 + 7 + d;     cout << ans << endl;     return 0;   }   