题解 | #不用额外变量交换两个整数的值#

import java.util.Scanner;
import java.io.*;

public class Main {

    public static void main(String[] args){
        Scanner in=new Scanner(System.in);
        int a=in.nextInt();
        int b=in.nextInt();
//         a=a^b;
//         b=a^b;
//         a=a^b;
        a=a+b;
        b=a-b;
        a=a-b;
        System.out.println(a+" "+b);
    }
}