01. Unique PIN Codes

using System;

namespace _01._Unique_PIN_Codes
{
    class Program
    {
        static void Main(string[] args)
        {
            int firstNum = int.Parse(Console.ReadLine());
            int secondNum = int.Parse(Console.ReadLine());
            int thirthNum = int.Parse(Console.ReadLine());
            bool flagOne = false;
            bool flagTwo = false;
            bool flagThree = false;

            for (int first = 1; first <= firstNum; first++)
            {
                if (first % 2 == 0)
                {
                    flagOne = true;
                }
                else
                {
                    flagOne = false;
                }

                for (int second = 2; second <= 7; second++)
                {

                    if (second == 2)
                    {
                        flagTwo = true;
                    }
                    else if (second % 2 == 0)
                    {
                        flagTwo = false;
                    }
                    else if (second <= 1)
                    {
                        flagTwo = false;
                    }
                    else
                    {
                        for (int i = 3; i <= second; i += 2)
                        {
                            if (second <= secondNum)
                            {
                                if (second % i == 0)
                                {
                                    flagTwo = true;
                                }
                                else
                                {
                                    flagTwo = false;
                                }
                            }
                            else
                            {
                                break;
                            }

                        }
                    }
                    for (int thirth = 1; thirth <= thirthNum; thirth++)
                    {
                        if (thirth % 2 == 0)
                        {
                            flagThree = true;
                        }
                        else
                        {
                            flagThree = false;
                        }

                        if (flagOne)
                        {
                            if (flagTwo)
                            {
                                if (flagThree)
                                {
                                    Console.WriteLine($"{first} {second} {thirth}");
                                }
                            }
                        }

                    }
                }
            }
        }
    }
}