URI 1323.

Question

INPUT

The input contains several test cases. Each test case is composed of a single line, containing only one integer N, representing the number of squares in each side of the grid (1 ≤ N ≤ 100).
The end of input is indicated by a line containing only one zero.

OUTPUT
For each test case in the input, your program must print a single line, containing the number of different squares for the corresponding input

Answer 1

lkjhggf if the grid is NxN (square), then the number of squares in the grid is N squared, or NxN squares.

Example:
N = 20;
squares = N*N; // squares = 400

Answer 2

Attempts?