Java A+B(个人模版)

Java A+B：

import java.io.*;
import java.util.*;
import java.math.BigInteger;
import java.util.Scanner;
public class Main
{
    public static void main(String args[]) throws Exception
    {
        Scanner in = new Scanner(System.in);
        while(in.hasNext())
        {
            BigInteger a, b;
            a = in.nextBigInteger();
            b = in.nextBigInteger();
            System.out.println(a.add(b));
        }
    }
}