import sys
import math

def main():
    lines = sys.stdin.readlines()
    numstr = " ".join(lines)
    numbers = numstr.split()

    for number in numbers[::-1]:
        print('%.4f'% round(math.sqrt(int(number)), 4))

    
if __name__ == '__main__':
    main()
e3b406e65e2a53cb11f6168fde3a2cd2d6c38ffa
<mask token>

<mask token>


def main():
    lines = sys.stdin.readlines()
    numstr = ' '.join(lines)
    numbers = numstr.split()
    for number in numbers[::-1]:
        print('%.4f' % round(math.sqrt(int(number)), 4))


<mask token>

<mask token>


def main():
    lines = sys.stdin.readlines()
    numstr = ' '.join(lines)
    numbers = numstr.split()
    for number in numbers[::-1]:
        print('%.4f' % round(math.sqrt(int(number)), 4))


if __name__ == '__main__':
    main()

import sys
import math


def main():
    lines = sys.stdin.readlines()
    numstr = ' '.join(lines)
    numbers = numstr.split()
    for number in numbers[::-1]:
        print('%.4f' % round(math.sqrt(int(number)), 4))


if __name__ == '__main__':
    main()

import sys
import math

def main():
    lines = sys.stdin.readlines()
    numstr = " ".join(lines)
    numbers = numstr.split()

    for number in numbers[::-1]:
        print('%.4f'% round(math.sqrt(int(number)), 4))

    
if __name__ == '__main__':
    main()