Java_BigInteger.java

/*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  */


                                                                              //SOLUTION//


import java.util.*;
import java.math.*;

public class Solution {

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        String s1,s2;
        s1=input.nextLine();
        s2=input.nextLine();
        input.close();
        System.out.println(new BigInteger(s1).add(new BigInteger(s2)));
        System.out.println(new BigInteger(s1).multiply(new BigInteger(s2)));
    }
}