题解 | #高精度整数加法#

import java.util.*;
import java.math.BigInteger;

public class Main {
    public static void main(String[] args) {
        Scanner fzhinput = new Scanner(System.in);
        String zfc1 = fzhinput.nextLine();
        String zfc2 = fzhinput.nextLine();
        BigInteger sz1= new BigInteger(zfc1);
        BigInteger sz2= new BigInteger(zfc2);
        System.out.println(sz1.add(sz2));
    }
}