from math import *

global a, b

a = [3]
b = [2*sqrt(3)]
i=0

while b[i]-a[i] > 0.0000000000000001:
    b_n =  (2*a[i]*b[i])/(a[i] + b[i])
    b.append(b_n)
    a_n = sqrt(a[i]*b[i+1])
    a.append(a_n)
    i=i+1
    
    
print(i)
print(a[i])
print(b[i])
print(3.141592653589793)