using System;

using System.Runtime.CompilerServices;

namespace Sample_Console

{

    class Program

    {

        static void Main(string[] args)

        {

            string answer;

            string inputHour;

            string inputMinutes;

            string inputSeconds;

            int hour;

            int minutes;

            int seconds;

            int sumOfSeconds;

            do

            {

                Console.Clear();

                Console.Write("Enter time in hour: ");

                inputHour = Console.ReadLine();

                if (Int32.TryParse(inputHour, out hour) == true)

                {

                    if (hour > 24)

                    {

                        Console.WriteLine("Input Error. Hour value should be 0 - 24 only ");

                    }

                    else if (hour == 24)

                    {

                        sumOfSeconds = (hour * 60 * 60);

                        Console.WriteLine("The equivalent time in seconds is {0:0,0}", sumOfSeconds);

                    }

                    else if (hour >= 0)

                    {

                        Console.Write("Enter time in mintues: ");

                        inputMinutes = Console.ReadLine();

                        if (Int32.TryParse(inputMinutes, out minutes) == true)

                        {

                            if (minutes > 60)

                            {

                                Console.WriteLine("Input Error. Minute value shoud be 0 - 60 only ");

                            }

                            else if (minutes >= 0)

                            {

                                sumOfSeconds = ((hour * 60 * 60) + minutes * 60);

                                if (sumOfSeconds == 86400)

                                {

                                    Console.WriteLine("The equivalent time in seconds is {0:0,0}", sumOfSeconds);

                                }

                                else

                                {

                                    Console.Write("Enter time in seconds: ");

                                    inputSeconds = Console.ReadLine();

                                    if (Int32.TryParse(inputSeconds, out seconds) == true)

                                    {

                                        if (seconds > 60)

                                        {

                                            Console.WriteLine("Input Erro. Seconds value shoud be 0 - 60 only");

                                        }

                                        else if (seconds >= 0)

                                        {

                                            sumOfSeconds = ((hour * 60 * 60) + (minutes * 60) + seconds);

                                            Console.WriteLine("The equivalent time in seconds is {0:0,0}", sumOfSeconds);

                                        }

                                    }

                                    else

                                    {

                                        Console.WriteLine("Invalid Input");

                                    }

                                }

                            }

                            else

                            {

                                Console.WriteLine("Invalid Input");

                            }

                        }

                        else

                        {

                            Console.WriteLine("Invalid Input");

                        }

                    }

                    else

                    {

                        Console.WriteLine("Invalid Input");

                    }

                }

                else

                {

                    Console.WriteLine("Invalid Input");

                }

                Console.Write("Do you want to try again?[Y/y]: ");

                answer = Console.ReadLine();

            } while ((answer == "Y") || (answer == "y"));

            Console.WriteLine("End of the program. Press any key to exit. ");

            Console.ReadKey();

        }

    }

}