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Score : $100$ points

### Problem Statement

We have two integers: $A$ and $B$.

Print the largest number among $A + B$, $A - B$, and $A \times B$.

### Constraints

• All values in input are integers.
• $-100 \leq A,\ B \leq 100$

### Input

Input is given from Standard Input in the following format:

$A$ $B$


### Output

Print the largest number among $A + B$, $A - B$, and $A \times B$.

### Sample Input 1

-13 3


### Sample Output 1

-10


The largest number among $A + B = -10$, $A - B = -16$, and $A \times B = -39$ is $-10$.

### Sample Input 2

1 -33


### Sample Output 2

34


The largest number among $A + B = -32$, $A - B = 34$, and $A \times B = -33$ is $34$.

### Sample Input 3

13 3


### Sample Output 3

39


The largest number among $A + B = 16$, $A - B = 10$, and $A \times B = 39$ is $39$.