package javaapplication1;
 
import java.util.Scanner;
import java.lang.String;
import java.io.*;
 
public class javaapplication1 {
    public static void javaapplication1 (String[] args) {
        Scanner oi=new Scanner(System.in);
        double a = oi.nextInt();
        String k = oi.next();
        double b = 0;
        double c = 0;
        if(a<=1000) {
            if("y".equals(k))b=8+5;
            if("n".equals(k))b=8;
        }
        else {
            if((a-1000)%500>0) c=(a+(500-(a-1000)%500)-1000)/500;
            if("y".equals(k)) b=(c*4+8+5);
            if("n".equals(k)) b=(c*4+8);
        }
        int m = (int) b;
        System.out.print(m);
    }
}

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

MTIwMCB5

1200 y