题解 | #按照格式输入并交换输出#

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.nextLine();
        String[] strs = s.split(",|=");
        System.out.println(strs[0] + "=" + strs[3] + "," + strs[2] + "=" + strs[1]);
    }
}