随便玩玩（可能有漏洞，请谅解！）

#include<iostream>
using namespace std;
int main(){
int n,s=8,b=0;
char a;
cin >> n;
int k=n;
cin >> a;
if(a=='y'){
s+=5;
}
if(n<=1000){
s+=8;
cout << s;
}else{
k-=1000;
b=k/500;
if(k%500>1){
b++;
}
s+=b*4;
}
cout << s;
return 0;
}