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: Wrong Answer)

#include<stdio.h>
int main(void){
  int a,b,s,t,u;
  scanf("%d%d",&a,&b);
  s=a+b;
  t=a-b;
  u=a*b;
  
  if(s>=t>=u)  printf("%d",s);
  else if(s>=u>=t)  printf("%d",s);
  else if(t>=s>=u)  printf("%d",t);
  else if(t>=u>=s)  printf("%d",t);
  else printf("%d",u);
  
  return 0;
}