题解 | #按照格式输入并交换输出#

public class Program {
    public static void Main() {
        string[] s = System.Console.ReadLine().Split(",");
        s[0] = s[0].Replace("a=","");
        s[1] = s[1].Replace("b=","");
        System.Console.WriteLine($"a={s[1]},b={s[0]}");
    }
}