using System;

​

public class SwitchStmtEx2 {

  public static void Main() {

    string[] ary = new string[] {

      "春",

      "梅雨",

      "夏",

      "秋",

      "冬"

    };

    var random = new System.Random();

    var x = ary[random.Next(0, ary.Length)];

    var message = x

    switch {

      "春" => "Spring",

      "夏" => "Spring",

      "秋" => "Spring",

      "冬" => "Spring",

      _ =>

        throw new InvalidOperationException()

    };

    Console.WriteLine($"{x}は、英語で{message}です。");

  }

}