import sys, math

numbers = []
empty_lines = 0

for line in sys.stdin:
    line = line.strip()

    if line == "":
        empty_lines += 1
        if empty_lines == 2:
            break
    else:
        empty_lines = 0
        numbers.extend(line.split())

for num in reversed(numbers):
    print(f"{math.sqrt(int(num)):.4f}")