Sum Big Numbers

package com.company;


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

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        BigInteger firstNumber = new BigInteger(scanner.nextLine());
        BigInteger secondNumber = new BigInteger(scanner.nextLine());
        BigInteger sum = firstNumber.add(secondNumber);

        System.out.println(sum);


    }

}