package main

import (
	"bufio"
	"fmt"
	"math"
	"os"
)

func main() {
	// use bufio for fast I/O
	scanner := bufio.NewScanner(os.Stdin)

	// read the length of the sequence
	var n int
	scanner.Scan()
	fmt.Sscan(scanner.Text(), &n)

	// read the sequence
	var x []int
	for i := 0; i < n; i++ {
		var xi int
		scanner.Scan()
		fmt.Sscan(scanner.Text(), &xi)
		x = append(x, xi)
	}

	// compute the sum of sqrt(xi) for each k
	for k := 0; k < n; k++ {
		var sum float64
		for i := 0; i <= k; i++ {
			sum += math.Sqrt(float64(x[i]))
		}
		fmt.Printf("%.16f\n", sum)
	}
}