import java.io.BufferedReader
import java.io.InputStreamReader
import java.io.PrintWriter
import java.math.MathContext
import kotlin.math.sqrt

val br = BufferedReader(InputStreamReader(System.`in`))
val out = PrintWriter(System.out)

fun main() {
    br.use {
        out.use {
//        repeat(readInteger()) { solve() }
            solve()
            out.flush()
        }
    }
}

fun solve() {
    val n = readInteger()
    var ans = 0.0.toBigDecimal()
    repeat(n) {
        val x = readLong().toBigDecimal().sqrt(MathContext.DECIMAL64)!!
        ans += x
        out.println(ans)
    }
}

fun readInteger() = Integer.parseInt(br.readLine())
fun readLong() = java.lang.Long.parseLong(br.readLine())
fun readStringList() = br.readLine()!!.split(' ')
fun readIntegerList() = readStringList().map(Integer::parseInt)
fun readLongList() = readStringList().map(java.lang.Long::parseLong)
fun readDoubleList() = readStringList().map(java.lang.Double::parseDouble)