Square in Grid

Time Limit: 1 sec

 

The Problem

In this problem, you will be given one integer number n as input. Write a simple program that print the number of equal small square in n x n grid.

 

 

In this picture the number of equal small square are 9 in 3 x 3 grid.

 

The Input

There are several lines of input in the input file. Each line contains one integer numbers n (0<n<100). Input is terminated by EOF.

 

The Output

For each line of input you have to print a line of output, this line contains an integer which is the number of small equal square in nx n grid.

 

Sample Input

1

3

6

 

Sample Output

1

9

36

 

 

 

[Outsbook Round #1 Online Contest]

Problem Setter: Shahin ShamS