import decimal
import sys
input = sys.stdin.readline
decimal.getcontext().prec = 18

N = int(input())
dicts = {}
output = []
now=0
for i in range(N):
    num = int(input())
    if num not in dicts:
        dicts[num] = decimal.Decimal(num**(1/2))
    now += dicts[num]
    output.append(now)
print(*output, sep="\n")