Problem:
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Watch

Write a program which reads an integer $S$ [second] and converts it to $h:m:s$ where $h$, $m$, $s$ denote hours, minutes (less than 60) and seconds (less than 60) respectively.

Input

An integer $S$ is given in a line.

Output

Print $h$, $m$ and $s$ separated by ':'. You do not need to put '0' for a value, which consists of a digit.

Constraints

$0 \leq S \leq 86400$

Sample Input 1

46979

Sample Output 1

13:2:59

Solution in C# (judge verdict: Accepted)

using System;

namespace Watch
{
    class Program
    {
        static void Main(string[] args)
        {
            Time s = new Time();
            s.Hms(int.Parse(Console.ReadLine()));
            s.Show();
        }
    }
    class Time
    {
        int hour, minute, second;
        public void Hms(int num)
        {
            if (num >= 3600)
            {
                hour = num / 3600;
                num -= hour * 3600;
            }
            if (num >= 60)
            {
                minute = num / 60;
                second = num % 60;
            }
            else
            {
                second = num;
            }
        }
        public void Show()
        {
            Console.WriteLine(hour + ":" + minute + ":" + second);
        }
    }
}