Задание 14

e = float(input())
i = 1
s = 0
a = -5
f = 1
while abs(round(a / (5 * f), 33)) > e:
    s += a / (5 * f)
    i += 1
    a *= 25
    f = 1
    for j in range(1, 2 * i):
        f *= j
print(s)