Java implementation of large number addition of BigDecimal instance code

import java.util.*;
import java.io.*;
import java.lang.String;
import java.math.BigDecimal;
public class p1036
{
    public static void main(String[] args)
    {
        String s1,s2;
        Scanner cin = new Scanner(System.in);        
        s1 = cin.next();
        s2 = cin.next();
        BigDecimal b1 = new BigDecimal(s1);
        BigDecimal b2 = new BigDecimal(s2);
        System.out.println(b1.add(b2));
        cin.close();
    }
}