Java BigInteger

In this problem, you have to add and multiply huge numbers! These numbers are so big that you can't contain them in any ordinary data types like a long integer.

Use the power of Java's BigInteger class and solve this problem.

Input Format

There will be two lines containing two numbers,  and .

Constraints

 and  are non-negative integers and can have maximum  digits.

Output Format

Output two lines. The first line should contain , and the second line should contain . Don't print any leading zeros.

Sample Input

1234
20

Sample Output

1254
24680

SOLUTION:

import java.io.*;

import java.util.*;

import java.text.*;

import java.math.*;

import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {

        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */

        

        Scanner userInput = new Scanner(System.in);

        BigInteger a;

        BigInteger b;

        BigInteger sum = BigInteger.valueOf(0);

        BigInteger product = BigInteger.valueOf(0);

        

        a = new BigInteger(userInput.nextLine());

        b = new BigInteger(userInput.nextLine());

        

        sum = sum.add(a);

        sum = sum.add(b);

        product = a.multiply(b);

        

        System.out.println(sum);

        System.out.println(product);

    }

}