using System;

using System.Linq;

​

public class Temperature

{

    private readonly int _value;

    public Temperature(int value)

    {

        _value = value;

    }

    public static implicit operator int(Temperature t) => t._value;

    public override string ToString() => _value.ToString();

}

​

public class Velocity

{

    private readonly int _value;

    public Velocity(int value)

    {

        _value = value;

    }

    public static implicit operator int(Velocity t) => t._value;

}

public class Program

{

    public static void Main()

    {

        var t1 = new Temperature(30);

        var t2 = new Temperature(20);

        var temps = new[] { t1, t2 };

        var orderedTemps = temps.OrderBy(t => t).ToList();

        Console.WriteLine($"{t1}, {t2}");

    }

}