switch days part2

using System;

public class Program
{
    public static void Main()
    {
        string day = Console.ReadLine();
        switch (day)
        {
            case "Monday": Console.WriteLine(1); break;
            case "Tuesday": Console.WriteLine(2); break;
            case "Wednesday": Console.WriteLine(3); break;
            case "Thursday": Console.WriteLine(4); break;
            case "Friday": Console.WriteLine(5); break;
            case "Saturday": Console.WriteLine(6); break;
            case "Sunday": Console.WriteLine(7); break;
            default: Console.WriteLine("invalid input"); break;
        }
    }
}