import math

try:
    x_zero = float(input("X0 eingeben: "))
except ValueError as error:
    print(f"Value {error} is not a number")
    quit()

n = 0
T = math.e ** x_zero + 2 * x_zero

while(T>10**-16):
    f_a2 = math.e ** x_zero + 2
    x_zero -= T/f_a2
    T = math.e ** x_zero + 2 * x_zero
    n += 1
    print(T)
print(n)