Number Guess

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
//בבית ספר ממלכתי יצאה שכבה ט' המונה 3 כיתות לטיול. כתוב תכנית המקבלת כקלט את מספר התלמידים בכל כיתה
namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            int num;
            char hint1;
            char hint2;
            int guessedNum = 1;
            int n = 10;
            int score = 100;
            bool playAgain = true;
            while (playAgain)
            {
                hint1 = 'n';
                hint2 = 'k';
                Random rnd = new Random();
                num = rnd.Next(1, 101);
                //Console.WriteLine(num);// מדפיס מספר רנדומלי לבדיקת תכנית
                for (int i = 0; i < 7; i++)
                {
                    Console.WriteLine("Guess number(" + (7 - i) + " guesses left):");
                    guessedNum = int.Parse(Console.ReadLine());
                    if (guessedNum == num)
                    {
                        Console.WriteLine("Great guess!\nSCORE: " +score +"\nPlay again?");
                        i = 8;
                    }
                    if (guessedNum > num)
                        Console.WriteLine(guessedNum + "> random number");
                    if (guessedNum < num)
                        Console.WriteLine(guessedNum + "< random number");
                    else if (guessedNum != num && hint2 != 'h' && (guessedNum >= 1 && guessedNum <= 100))
                    {
                        Console.WriteLine("Wrong! Press 'h' for a hint. Press any othe key then hit 'enter' to guess\nagain.");
                        if (hint1 != 'h')
                        {
                            hint1 = char.Parse(Console.ReadLine());
                            if (hint1 == 'h')
                            {
                                Console.WriteLine("Number is a " + (Convert.ToString(num)).Length + " digits number.");
                                n = i;
                                score-=10;
                            }
                        }
                        if (hint1 == 'h' && n != i)
                        {
                            hint2 = char.Parse(Console.ReadLine());
                            if (hint2 == 'h')
                            {
                                string strNum = Convert.ToString(num);
                                Console.WriteLine("The first digit of the number is " + strNum[0] + ".");
                                score -=20;
                            }
                        }
                    }
                    else if (guessedNum > 100 || guessedNum < 1)
                    {
                        Console.WriteLine("Number out of range! This guess will not count.");
                        i--;
                    }
                    score -=10;
                }
                if (guessedNum != num)
                    Console.WriteLine("Too bad! Play again?");
                Console.WriteLine("y/n");
                char action = char.Parse(Console.ReadLine());
                switch (action)
                {
                    case 'y':
                        playAgain = true;
                        Console.WriteLine();
                        break;

                    case 'n':
                        playAgain = false;
                        break;
                }
            }
        }
    }
}