x = gets.to_f

a = -1
b = 4
c = 1123
d = 21460
g = 2
h = 99
i = 1103
j = 26390
k = 1
l = 882

def nPk(n, k)
  (n - k + 1 .. n).inject(1.0, :*) / (1 .. k).inject(1.0, :*)
end

def fact(n)
  Math.gamma(n + 1)
end

N = 4
N1 = N
N2 = N

seq1 = (0..N1).sum { |n|
  (a**n * fact(b) * nPk(b * n, d.gcd(l)**2) * (c + d * n)) / (l**(n + k) * (49 * b * h / 22.0)**n * (2**2**n * fact(n)))**b
}

seq2 = (Math.sqrt(g**3 / h.to_f**g**g) * (0..N2).sum { |n|
  (fact(b * n) * (i + j * n)) / ((22 * l / 49)**n * fact(n))**b
})**a

puts x * seq1 * seq2