import java.util.Scanner;

 
public class Code005 {
    public static void main(String[] args) {
		/*会员积分*/
    	System.out.print("请输入会员积分：");
    	Scanner input = new Scanner(System.in);
    	int custScore = input.nextInt();
    	double discount;
    	if(custScore < 2000){
    		discount = 0.9;
    	}else if(custScore >=2000 && custScore < 4000){
    		discount = 0.8;
    	}else if(custScore >= 4000 && custScore < 8000){
    		discount = 0.7;
    	}else{
    		discount = 0.6;
    	}
    	System.out.println("该会员享受的折扣是：" + discount);
	}
}