import java.util.Scanner;
import java.text.DecimalFormat;
public class Main {
public static void ball(float M,int N){
DecimalFormat df = new DecimalFormat("0.00");
float num = 0;//共经过多少米
float numA = 0;//反弹多高
if(N>=1){
num = M;
numA = M/2;
if(N>=2){
for(int i = 1;i<N;i++){
num+=numA*2;
numA=numA/2;
}
}
}
System.out.print(df.format(numA)+" "+df.format(num));
}
public static void main(String[] arg){
Scanner sc = new Scanner(System.in);
float M = sc.nextFloat();
int N = sc.nextInt();
ball(M, N);
}
}
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