Problem Statement

We have an $N \\times N$ square grid.

We will paint each square in the grid either black or white.

If we paint exactly $A$ squares white, how many squares will be painted black?

Constraints

• $1 \\leq N \\leq 100$
• $0 \\leq A \\leq N^2$

Inputs

Input is given from Standard Input in the following format:

$N$ $A$

Outputs

Print the number of squares that will be painted black.

Sample Input 1

3
4

Sample Output 1

5

There are nine squares in a $3 \\times 3$ square grid. Four of them will be painted white, so the remaining five squares will be painted black.

Sample Input 2

19
100

Sample Output 2

261

Sample Input 3

10
0

Sample Output 3

100

As zero squares will be painted white, all the squares will be painted black.