import sys
input = sys.stdin.readline
from decimal import *
getcontext().prec = 50

N=int(input())
X=[int(input()) for i in range(N)]

ANS=[]

score=Decimal(0)
for x in X:
    x*=10**40

    MIN=Decimal(0)
    MAX=Decimal(x)
    for i in range(100):
        mid=(MAX+MIN)/2

        if mid*mid>x:
            MAX=mid
        else:
            MIN=mid

    score+=(Decimal(MAX+MIN)/2/10**20)

    ANS.append(score)

print("\n".join(map(str,ANS)))