题解 | #高精度整数加法#

import java.math.BigDecimal;
import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            BigDecimal a = new BigDecimal(sc.nextLine());
            BigDecimal b = new BigDecimal(sc.nextLine());
            System.out.println(a.add(b));

        }
        sc.close();
    }
}