import sys
read=sys.stdin.buffer.read
readline=sys.stdin.buffer.readline
readlines=sys.stdin.buffer.readlines
n=int(readline())
from decimal import *
getcontext().prec=50
ans=Decimal(0)
for _ in range(n):
    x=int(readline())
    ans+=Decimal(x).sqrt()
    print(ans.quantize(Decimal('1e-18')))