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, a and b.

Constraints

a and b are non-negative integers and can have maximum 200 digits.

Output Format

Output two lines. The first line should contain a + b, and the second line should contain a * b. Don’t print any leading zeros.

Sample Input

1234
20

Sample Output

1254
24680

Explanation

1234+ 20 = 1254 254
1234 x 20 = 24680

Solution Implementation

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) {
       Scanner sc = new Scanner(System.in);
        String numOne = sc.nextLine();
        String numTwo = sc.nextLine();
        BigInteger bigNumOne = new BigInteger(numOne);
        BigInteger bigNumTwo = new BigInteger(numTwo);
        System.out.println(bigNumOne.add(bigNumTwo));
        System.out.println(bigNumOne.multiply(bigNumTwo));
    }
}