lines = []
for line in stdin:
    for i in range(0, len(line.split())):
        lines.append(line.split()[i])
lines = [int(i) for i in lines]
lines_rev = list(reversed(lines))
numbers = []
for i in range(0, len(lines_rev)):
    numbers.append(lines_rev[i]**0.5)
for i in range(len(numbers)):
    print(f"{numbers[i]:.4f}")