#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 = """# paste here...
# """
# sys.stdin = io.StringIO(_INPUT)


def main():
    N = int(input())

    decimal.getcontext().prec = 18
    s = decimal.Decimal(0)
    for _ in range(N):
        x = decimal.Decimal(int(input()))
        s += x.sqrt()
        print(s)


if __name__ == '__main__':
    main()