04

using System;
using System.Collections.Generic;
using System.Linq;

namespace p04._Split_by_Word_Casing
{
    internal class Program
    {
        public static void Main(string[] args)
        {
            List<string> numbers = Console.ReadLine()
                .Split(new char[] {',', '.', ';', ':', '!',' ','"','\\', '/','[',']','(',')'})
                .ToList();

            List<string> lowerCase = new List<string>();
            List<string> mixedCase = new List<string>();
            List<string> upperCase = new List<string>();

            foreach (var symbol in numbers)
            {
                bool lower = false;
                bool mixed = false;
                bool upper = false;

                foreach (char letter in symbol)
                {
                    if (letter >= 'a' && letter <= 'z')
                    {
                        lower=true;
                    }
                    else if (letter >= 'A' && letter <= 'Z')
                    {
                        upper=true;
                    }
                    else
                    {
                        mixed=true;
                    }

                }


            if (lower && !mixed  && !upper)
                {
                    lowerCase.Add(symbol);
                }

                else if (!lower  && !mixed && upper)
                {
                    upperCase.Add(symbol);
                }
            else
            {
                mixedCase.Add(symbol);
            }

            }


            Console.WriteLine($"Lower-case: {string.Join(", ", lowerCase)}");
            Console.WriteLine($"Mixed-case: {string.Join(", ", mixedCase)}");
            Console.WriteLine($"Upper-case: {string.Join(", ", upperCase)}");
        }
    }
}