using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;

public class Test
{
	public static void Main()
	{
		var strs = new List<string> { "PassWord", "PAssword", "PASSWord"};
		var n = 2;
    	var pat = $@"^(?:[^A-Z]*[A-Z]){{{n}}}[^A-Z]*$";
    	foreach (var s in strs) {
			Console.WriteLine("{0}: {1}", s, Regex.IsMatch(s, pat));
    	}
	}
}