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.......

// //方法一:使用第三变量 // int temp = a; // a = b; // b = temp;

    //方法二:不使用第三变量
    a = a+b;
    b = a-b;
    a = a-b;
    
    //方法三:使用括号运算改变运算优先级顺序

// a = (a+b) - (b=a);

    //方法四:使用位运算

// a = a^b; // b = a^b; // a = a^b;

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

}