题解

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