from math import *

xk=2
for i in range(1,50):
    xk_1= (2**i)*sqrt(2*(1-sqrt(1-(xk/(2**i))**2)))
    print(str(i)+" "+str(xk_1))
    xk=xk_1
print("stop")

xk=2
for i in range(1,50):
    xk_1= (2**i)*sqrt(2*(xk/2**i)**2/(1+sqrt(1-(xk/2**i)**2)))
    print(str(i)+" "+str(xk_1))
    xk=xk_1