12307 - 计算邮费

#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,ans=8;
	char y;
	cin>>n>>y;
	if(n>1000) ans+=((n-1000-1)/500+1)*4;
	if(y=='y') ans+=5;
	cout<<ans;
	return 0;
}