Problem:
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.

Solution in C (GCC 5.4.1) (judge verdict: Accepted)

#include<stdio.h>

int max(int x, int y){
    int a,b,c;
    a = x+y;
    b = x-y;
    c = x*y;
    int d;
    if(a>b){
        d = a;
    }else{
        d = b;
    }
     if(d>c){
        d = d;
    }else{
        d = c;
    }
    return d;
}

int main(void){
    int x,y,z;
    scanf("%d",&x);
    scanf("%d",&y);
    z = max(x,y);
    printf("%d",z);
    return 0;
}