Problem:
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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 procon
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var n = int.Parse(Console.ReadLine());

            var dt = new DateTime(2000, 1, 1).AddSeconds(n);
            
            Console.WriteLine("{0}:{1}:{2}",dt.Hour, dt.Minute, dt.Second);
            Console.Out.Flush();
        }
    }
}