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 3.8.0) (judge verdict: Accepted)

#include<stdio.h>

int main(void){
int A;
int B;
int m[3];

scanf("%d %d", &A, &B);
m[0] = A+B;
m[1] = A-B;
m[2] = A*B;

int max;
max = m[0];
int i ;

for(i = 1; i < 3;i++){
if(max < m[i])
max = m[i];
}

printf("%d", max);

return 0;
}