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 a,b,su=0,sb=0,mu=1;
    scanf("%d  %d",&a,&b);
    if(a>=-1000 && b<=1000){
        su=a+b;
        sb=a-b;
        mu=a*b;
    }
    if(su>mu && mu>sb){
     printf("%d\n",su);
    }
    if(mu>sb && sb>su){
     printf("%d\n",mu);
    }
    if(sb>mu && mu>su){
     printf("%d\n",sb);
    }
    if(su>sb && sb>mu){
     printf("%d\n",su);
    }
    if(mu>su && su>sb){
     printf("%d\n",mu);
    }
    if(sb>su && su>mu){
     printf("%d\n",sb);
    }
    return 0;
}