using System;
using System.Collections.Generic;

class Foo {
    public string GetSchedules(string request)
    {
        return Worker((c) => c[request]);
    }
    
    public string GetCountryList(string request)
    {
        return Worker((c) => c[request].ToUpper());
    }
    
    public string GetCarriers(string request)
    {
        return Worker((c) => c[request].ToLower());
    }
    
    private string Worker(Func<Dictionary<string,string>, string> f)
    {
        var d = new Dictionary<string, string>();
        d.Add("1", "One");
        d.Add("2", "Two");
        d.Add("3", "Three");
        return f(d);
    }
}

public class Test
{
	public static void Main()
	{
		var f = new Foo();
		Console.WriteLine(f.GetSchedules("1"));
		Console.WriteLine(f.GetCountryList("1"));
		Console.WriteLine(f.GetCarriers("1"));
	}
}