c++

#include<iostream>
using namespace std;
int main(){
int money;
char yn;
cin>>money>>yn;
if(yn=='y'&&money>=1000&&money%500!=0){
money=((money-1000)/500+1)4+5+8;
}
else if(yn=='y'&&money>=1000){
money=(money-1000)/504+5+8;
}
else if(yn=='n'&&money>=1000&&money%500!=0){
money=((money-1000)/500+1)*4+8;
}
else if(yn=='n'&&money>=1000&&money){
money=((money-1000)/500)*4+8;
}
cout<<money;
return 0;