package firstpratice;
import java.util.*;
public class third {

	public static void main(String[] args) {
		// TODO 自动生成的方法存根
   
		Scanner sc=new Scanner(System.in);
		System.out.println("请输入高度h:");
		double h=sc.nextDouble();
		System.out.println("请输入落地次数：");
		int n=sc.nextInt();
		int c=n;
		double sum=0;
		while(n>0)
		{
		   
			sum+=h+h/2;
			 h=h/2;
			 n--;
		}
		System.out.println("一共跳了："+sum+"米");
		System.out.println("第"+c+"次反弹 "+h+" 米");
	}

}