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 (GCC 5.4.1) (judge verdict: Wrong Answer)

#include <stdio.h>

    int main(){
        int x,y,z,n,m,jaw;
        scanf("%d", &n);
        scanf("%d", &m);
        x = n*m;
        y = n+m;
        z = n-m;
        jaw = x;
        if ( jaw < y) {

                jaw = y ;

        }
       else if (jaw < z) {
             jaw = z ;
        }
        printf("%d/n", jaw);

    return 0;
}