package com.math;import java.math.BigInteger;import java.util.Scanner;public class TestBigInteger {public static void main(String[] args) {BigInteger bi1,bi2;Scanner sc = new Scanner(System.in);//标准输入流(从键盘输入)bi1 = sc.nextBigInteger();bi2 = sc.nextBigInteger();bi1 = bi1.add(bi2);System.out.println(bi1);}}