#region Header
#!/usr/bin/env python3
# from typing import *

import sys
import io
import math
import collections
import decimal
import itertools
from queue import PriorityQueue
import bisect
import heapq

def input():
    return sys.stdin.readline()[:-1]
# input = sys.stdin.readline

sys.setrecursionlimit(1000000)
#endregion

# _INPUT = """3
# 3
# 4
# 5
# """
# sys.stdin = io.StringIO(_INPUT)


def main():
    N = int(input())
    s = 0
    for i in range(N):
        x = int(input()) * 10**30
        s += int(math.sqrt(x))
        print(s / 10**15)


if __name__ == '__main__':
    main()