import numpy as np

A = input()
B = [0] * int(A)
C = [0] * int(A)
counter = 0
for x in range(int(A)):
    B.append(input())
    counter = 0
    for y in B:
        C[x] = C[x] + np.sqrt(int(B[counter]))
        counter = counter + 1
counter = 0
for x in C:
    print(C[counter])
    counter = counter + 1