题解 | #高精度整数加法#

import java.math.BigInteger;
import java.util.Scanner;
public class Main{
public static void main(String[] args) {
Scanner in=new Scanner(System.in);
while(in.hasNext()){
String a=in.next();
String b=in.next();
BigInteger c=new BigInteger(a);
BigInteger d=new BigInteger(b);
System.out.println(c.add(d));
}
}
}