C# baseball game

baseball.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Security.Cryptography;

namespace NEXTCSharp
{
    class BaseballGame
    {
        public int[] guess, answer;
        const int Length = 3;

        public BaseballGame()
        {
            guess = new int[Length];
            answer = new int[Length];
            genrateAns(answer);
        }

        private void genrateAns(int[] answer)
        {
            List<int> queue = new List<int>();
            for (int i = 1; i <= 9; i++)
                queue.Add(i);
            MyOp.shuffle(queue);
            for (int i = 0; i < answer.Length; i++)
                answer[i] = queue[i];
            //printData(answer);  
        }

        private void printData(int[] arr)
        {
            //foreach (int i in answer.num)
            for (int i = 0; i < arr.Length; i++)
            {
                Console.Write(arr[i]);
                if (i != arr.Length - 1)
                    Console.Write(":");
                else
                    Console.Write("\n");
            }
        }

        /// <summary>
        /// main loop for baseball game 
        /// debug true if you want to display debug message
        /// </summary>
        private void loop(bool debug)
        {
            bool bdebug = debug;
            Console.WriteLine("야구게임");
            Console.WriteLine("=================================");
            if (debug)
            {
                Console.Write("정답: ");
                printData(answer);
                Console.WriteLine("=================================");
                Console.WriteLine();
            }

            int b, s, n_try;
            s = n_try = 0;
            //start main loop
            while (s != 3)
            {
                n_try++;
                b = s = 0;
                Console.Write("숫자 " + Length + "개를 입력하세요[예: 2, 3, 4] ");
                string str = Console.ReadLine();
                string[] str_input = str.Split(',');

                //convert each string to int and compare it with all answer number
                for (int i = 0; i < guess.Length; i++)
                {
                    guess[i] = Convert.ToInt16(str_input[i]);
                    for (int j = 0; j < answer.Length; j++)
                        if (guess[i] == answer[j])
                            if (i == j)
                                s++;
                            else
                                b++;                                     
                }
                //display result of this try
                if (s == 0 && b == 0)
                    Console.WriteLine("아웃!");
                else if (s == 3)
                    Console.WriteLine("홈런!");
                else
                {
                    string tmp = "";
                    tmp += (s != 0) ? s + "스트라이크 " : "";
                    tmp += (b != 0) ? b + "볼" : "";
                    Console.WriteLine(tmp);
                }
            } //end of main while loop
            Console.WriteLine(n_try + "번 만에 맞추셨어요 :D\n");
        }

        /// <summary>
        /// main test program
        /// </summary>
        /// <param name="args"></param>
        static void Main(string[] args)
        {
            BaseballGame b = new BaseballGame();
            //b.loop(false);
            b.loop(true);
        }
    }

    static class MyOp
    { 
        public static void shuffle<T>(this List<T> list)
        {
            Random rng = new Random();
            int n = list.Count;
            while (n > 1)
            {
                n--;
                int k = rng.Next(n);
                T value = list[k];
                list[k] = list[n];
                list[n] = value;
            }
        }
    }
}

학생들 C#스터디를 위해 작성하신건가요?! 아니면 교수님께서 공부중인신건가요?! ㅋㅋ