public static void Main()
Console.WriteLine("Time Elapse");
Console.Write("Enter time in hour(s): ");
inputHours = Console.ReadLine();
Console.Write("Enter time in minute(s): ");
inputMinutes = Console.ReadLine();
Console.Write("Enter time in second(s): ");
inputSeconds = Console.ReadLine();
if((Int32.TryParse(inputHours, out hours)==true)&&(Int32.TryParse(inputMinutes, out minutes)==true)&&(Int32.TryParse(inputSeconds,out seconds)==true)){
Console.WriteLine("Input Error. Hour value should be 0-24 only.");
Console.WriteLine("Input Error. Minute value should be 0-60 only.");
Console.WriteLine("Input Error. Seconds value should be 0-60 only.");
total=hours + minutes + seconds;
if((hours==25||hours>=25)&&(minutes==60||minutes<=60)&&(seconds==60||seconds<=60)){
Console.WriteLine("Invalid Time.");
total=hours + minutes + seconds;
Console.WriteLine("The equivalent time in seconds is " + "{0:n0}", total);
Console.WriteLine("Invalid Input.");