n = gets.chomp.to_i
xs = n.times.map { gets.chomp.to_i }

@memo = Array.new(n)

def calc_sum(i, xs)
  return @memo[i] if @memo[i]
  return @memo[i] = Math.sqrt(xs[i]) if i == 0

  @memo[i] = calc_sum(i-1, xs) + Math.sqrt(xs[i])
end

(0...n).each do |i|
  puts calc_sum(i, xs)
end