using System;

namespace Kirill_1
{
    class Program
    {

        static int[] CountCharacterTypes(string pass)
        {
            int[] res = new int[4];

            foreach (var ch in pass)
            {
                if (ch >= '0' && ch <= '9')
                    res[0]++;
                else if (ch >= 'a' && ch <= 'z')
                    res[1]++;
                else if (ch >= 'A' && ch <= 'Z')
                    res[2]++;
                else
                    res[3]++;
            }

            return res;
        }

        static void Main(string[] args)
        {

            Console.WriteLine("A safe password is:\n" +
                " - Must be at least 8 characters long\n" +
                " - At least one upper case letter\n" +
                " - At least one lower case letter\n" +
                " - At least one number\n" +
                " - No other characters allowed");
            Console.WriteLine();
            Console.WriteLine("Please enter a safe password:");

            // read the line entered by the user:
            string pass = Console.ReadLine();
            // send to the calculation in the function:
            int[] res = CountCharacterTypes(pass);

            // check what is contained in the entered password:
            if (pass.Length < 8 || res[0] == 0 || res[1] == 0 || res[2] == 0)
            {
                Console.WriteLine();
                Console.WriteLine("Password has:\n" + res[0] + " digits\n" + res[1] + " Lower Case\n" +
                                  res[2] + " Upper Case\n" + res[3] + " Other");
            }
            else
            {
                Console.WriteLine("Password is safe");
            }
            Console.WriteLine();
            Console.WriteLine("Password must be at least 8 characters long\n" +
                "Password must have at least one number.\n" +
                "Password must have at least one lower case letter\n" +
                "Password must have at least one upper case letter\n" +
                "Password must contain only English letters and numbers");
        }
    }
}