How to use IComparable to sort in c#

using System;

public class Program
{
    public static void Main()
    {
        string[] strArray = new string[]
        {
           "Trunk=2*12", "Trunk=2*1", "Trunk=2*2"
        };

        Array.Sort(strArray);
        foreach (string s in strArray)
        {
            Console.WriteLine(s);
        }
    }
}