static void Main(string[] args)
{
var textA = @"zero one two three four fyve six seven";
var textB = @"zero one too treee four five six seven eight nine";
var result = DiffEngine.Process(ref textA, ref textB);
var html =
$@"
<html>
<head>
<style>
ins{{background-color: #d5ffba;}}
del{{background-color: #ffc6d5;}}
</style>
</head>
<body>
{result}
</body>
</html>
";
File.WriteAllText(@"test.html", html);
Process.Start("test.html");
}