题解 | #高精度整数加法#

import java.math.BigInteger;

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        while (scan.hasNext()) {
            String s1 = scan.next();
            String s2 = scan.next(); //输入两个数
            BigInteger a = new BigInteger(s1); //将字符串转成大整数
            BigInteger b = new BigInteger(s2);
            System.out.println(a.add(b)); //大整数相加
        }
    }
}