Equation Again

Time Limit: 1 sec

 

The Problem

We all are familiar with the equation (x + y) ² = X² + Y² + 2XY.

The value of m is given. You have to find out the result of (m + (1/m)) ⁴   

 

Example:

m = 6

Result = 1446.112

 

 

The Input

Input file will contain a series of line. Each line contains a single integer value m (m<=25). Input is terminated by EOF.

 

The Output

Output file will print the result rounded to 3 decimal points in a separate line.

 

Sample Input

10

15

6

 

Sample Output

10406.040

51531.018

1446.112

 

 

 

 

Problem Setter: Samia Safa Ahmed