题解 | #按照格式输入并交换输出#

import java.io.*;
public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        String str = in.readLine();
        String[] s = str.split(",");
        int a = Integer.parseInt(s[0].substring(2));
        int b = Integer.parseInt(s[1].substring(2));
        System.out.printf("a=%d,b=%d",b,a);
    }
}