package main

import (
	"fmt"
	"math"
)

func main() {
	// Read in the sequence length N
	var N int
	fmt.Scanf("%d", &N)

	// Read in the sequence
	sequence := make([]int, N)
	for i := 0; i < N; i++ {
		fmt.Scanf("%d", &sequence[i])
	}

	// Initialize a variable to store the sum of sqrt(xi) for i = 0 to i = k
	var sum float64

	// Iterate over the sequence
	for k := 0; k < N; k++ {
		// Add the square root of the current element to the sum
		sum += math.Sqrt(float64(sequence[k]))

		// Print the sum
		fmt.Printf("%.16f\n", sum)
	}
}