题解 | #交换变量值#

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = scanner.nextInt();

        //write your code here.......
        a=(a+b)-(b=a);
        //完全没想到过可以通过运算符优先级来进行无临时变量交换
        
        

        System.out.println(a+" "+b);
    }
}