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Score : $100$ points

### 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.