C++ :

#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,c,d,e;
	char b;
	cin>>a>>b;
	if(a<=1000&&b=='y'){
		c=8+5;
		cout<<c;
	}
	else if(a<=1000&&b=='n'){
		c=8;
		cout<<c;
	}
	else if(a>1000&&b=='n'){
		d=(a-1000)/500;
		e=(a-1000)%500;
		if(e!=0){
			d+=1;
		}
		c=d*4+8;
		cout<<c;
	}
	else{
		d=(a-1000)/500;
		e=(a-1000)%500;
		if(e!=0){
			d+=1;
		}
		c=d*4+8+5;
		cout<<c;
	}
}

Python :

# coding=utf-8
x,y=input().split()
x=int(x)
s=0
if x<=1000:
    s=8
else:
    if (x-1000)%500==0:
        s=8+(x-1000)//500*4
    else:
        s=8+(x-1000)//500*4+4
if y=='y':
    s=s+5
print(s)