import java.util.Scanner;
public class VariableExchange {
    public static void main(String[] args){
        System.out.println("請輸入變量A的值");
        Scanner scanner=new Scanner(System.in);
        long A=scanner.nextLong();
        System.out.println("請輸入變量B的值");
        Scanner scannerB=new Scanner(System.in);
        long B=scannerB.nextLong();
        System.out.println("A="+A+"/t"+"B="+B);
        System.out.println("執行變量互換...");
        A=A^B;
        B=B^A;
        A=A^B;
        System.out.println("A="+A+"/t"+"B="+B);
    }
}