Java A+B(个人模版)

JavaA+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));
         }
     }
 }