1019

# include <stdio.h>
main()
{
	float m,n,h,s;
	int i;
	scanf("%f%f",&m,&n);
	h=m,s=m;
	for(i=1;i<=n;i++)
	{
		h=h/2;
		s=s+2*h;
	}
	s=s-h*2;
	printf("%.2f %.2f",h,s);//31.25 2875.00
}