Java BigInteger Hackerrank Solution For Explanation Watch Video: Sample Input 1234 20 Sample Output 1254 24680 Code: import java.io.*; import java.util.*; import java.math.*; public class Solution { public static void main(String[] args) { Scanner scn = new Scanner(System.in); BigInteger a; BigInteger b; a = new BigInteger(scn.nextLine()); b = new BigInteger(scn.nextLine()); BigInteger sum = BigInteger.valueOf( 0 ); BigInteger product = BigInteger.valueOf( 0 ); sum = sum.add(a); sum = sum.add(b); System.out.println(sum); product = a.multiply(b); System.out.println(product); } }