答案

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