n = gets.to_i
b = gets.to_i
a = gets.split.map(&:to_f)
sum1 = 0.0
sum2 = 0.0
n.times do |i|
	if a[i] != 0.0
		sum1 += a[i] * (b ** (a[i] - 1.0))
	end
	if a[i] != -1.0
		sum2 += 1.0 / (a[i] + 1.0) * (b ** (a[i] + 1.0))
	else
		sum2 += Math.log(b.abs)
	end
end
puts sum1
puts sum2 + 0.1