eolymp
Problems

Square root

Square root

You are given a number n. Find its square root.

Input

One integer n (1n1016) is given.

Output

Output the square root of the given number with exactly 6 decimal digits after the point.

Time limit 1 second
Memory limit 128 MiB
Input example #1
1

Output example #1
1.000000
Input example #2
1000000

Output example #2
1000.000000
Input example #3
10

Output example #3
3.162278
Author Rashad Mammadov