import math

EPS = 1e-9

N = input()
B = input()
a = map(float, raw_input().split())


def f(x):
  res = 0
  for i in xrange(len(a)):
    res += a[i] * (x**(a[i] - 1))
  return res

def F(x):
  res = 0
  for i in xrange(len(a)):
    if -1.0 - EPS <= a[i] and a[i] <= -1.0 + EPS:
      res += math.log(x)
    else:
      res += x ** (a[i] + 1) / (1.0 * (a[i] + 1))
  return res


print f(B)
print F(B)