import sys
import math
pin=sys.stdin.readline

ans1=0
ans2=0
N=int(pin())

for i in range(N):
  x,y=f"{math.sqrt(int(pin())):.20f}".split(".")
  x=int(x)
  y=int(y)
  ans2+=y
  ans1+=x
  if ans2>=100000000000000000000:
    ans2-=100000000000000000000
    ans1+=1
  print(f"{ans1}.{ans2}")