import decimal
import sys
input = sys.stdin.readline

def one_str():
    return input()

def many_int():
    return list(map(int, input().split()))

decimal.getcontext().prec = 16

input_count = 0
N = many_int()[0]
now = 0
for i in range(N):
    now += decimal.Decimal(many_int()[0]**(1/2))
    print(now)