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=30
import itertools
ans=itertools.accumulate([Decimal(int(readline())).sqrt() for _ in range(n)])
ans=[x.quantize(Decimal('1e-18')) for x in ans]
print('\n'.join(map(str, ans)))