using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        var input = "What connects a *moonlit heist* with a *medical device*?";

        var regex = new Regex(@"(\*)(.+?)(\*)");

        var result = regex.Replace(input, "<em>$2</em>");

        Console.WriteLine(result);

    }

}