import java.util.Scanner;


public class Code004 {
    public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		System.out.println("请输入是否是会员：是(y)/否(其他字符)");
		String identity = input.next();
		System.out.println("请输入购物金额：");
		double money = input.nextDouble();
		if(identity.equals("y")){ //会员
			if(money>200){
				money = money * 0.75;
			}else{
				money = money * 0.8;
			}
		}else{ //非会员
			if(money>100){
				money = money * 0.9;
			}
		}System.out.println("实际支付：" + money);
	}
}