Problem:
Score : 100 points

Problem Statement

You are given two integers A and B.
Find the largest value among A+B, A-B and A \times B.

Constraints

-1000 \leq A,B \leq 1000

All values in input are integers.

Input

Input is given from Standard Input in the following format:

A B

Output

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

Sample Input 1

3 1

Sample Output 1

4

3+1=4, 3-1=2 and 3 \times 1=3. The largest among them is 4.

Sample Input 2

4 -2

Sample Output 2

6

The largest is 4 - (-2) = 6.

Sample Input 3

0 0

Sample Output 3

0

Solution in C (Clang 10.0.0) (judge verdict: Accepted)

#include<stdio.h> 
int main() 
{ 
int a,b,c,d,e; 
scanf("%d%d",&a,&b); 
c=a+b; 
d=a-b; 
e=a*b; 
if(c>d&&c>e)printf("%d\n",c); 
else if(d>e)printf("%d\n",d); 
else printf("%d\n",e); 
return 0; 
}