using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;
 
public class Test
{
	public static void Main()
	{
    	var s = "There are many kids in the playground. It's about 1 23  45 5;中文等等";
    	var pattern = @"([0-9])|([a-zA-Z])|([\u4e00-\u9fa5])";
    	var ms = Regex.Matches(s, pattern).Cast<Match>();
    	var ascii_digit_cnt = ms.Select(x => x.Groups[1].Value).Where(n => !string.IsNullOrEmpty(n)).Count();
    	var ascii_letter_cnt = ms.Select(x => x.Groups[2].Value).Where(n => !string.IsNullOrEmpty(n)).Count();
    	var han_cnt = ms.Select(x => x.Groups[3].Value).Where(n => !string.IsNullOrEmpty(n)).Count();
       	Console.WriteLine($"{ascii_digit_cnt} : {ascii_letter_cnt} : {han_cnt}");
	}
}

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