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 Java8 (OpenJDK 1.8.0) (judge verdict: Runtime Error)

import java.util.Scanner;

class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
    
        int N = sc.nextInt();
        String S = sc.next();
        char[] A = S.toCharArray();

        int countE = 0;
        int countW = 0;
        for(int i = 0; i < N; i++){
            if(A[i] ==  'E'){
                countE++;
            }else{
                countW++;
            }
        }

        if(countE > countW){
            System.out.println(countW);
        }else{
            System.out.println(countE);
        }
    }
}