Emojis

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

namespace Exr
{
    public class Program
    {
        static void Main(string[] args)
        {
            var input = Console.ReadLine();

            MatchCollection digitMatch = Regex.Matches(input, @"\d");

            int coolness = 1;

            foreach (var digit in digitMatch.Select(x => x.Value))
            {
                coolness *= int.Parse(digit);
            }

            Console.WriteLine($"Cool threshold: {coolness}");

            MatchCollection matches = Regex.Matches(input, @"(::|\*\*)(?<word>[A-Z][a-z]{2,})\1");

            if(matches.Count == 0)
            {
                return;
            }

            Console.WriteLine($"{matches.Count} emojis found in the text. The cool ones are:");

            foreach (Match match in matches)
            {
                int currentCoolness = match.Groups["word"].Value.Sum(c => c);

                if(currentCoolness >= coolness)
                {
                    Console.WriteLine(match.Value);
                }
            }
        }

    }


}