e-olymp
Competitions

PP1 Week 3 Contest 1

Value of variable 1

Find the value of the variable y for a given real value of the variable x.

Image 1.jpg

Input

Value of the variable x.

Output

Print the value of the variable y up to thousandths.

Time limit 1 second
Memory limit 128 MiB
Input example #1
1
Output example #1
7.286
Author Matviychuk Sergiy Volodymyrovych
Source "ABC programming"