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;
using System.Collections.Generic;
using System.Text;

namespace AOJ
{
    class Program
    {
        static void Main(string[] args)
        {
            var inputLine = Console.In.ReadLine();
            var inputs = inputLine.Split(new char []{' ','\t','　'});
            if (inputs.Length != 1)
            {
                return;
            }

            var S = int.Parse(inputs[0]);
            if (false
                || S < 0 || 86400 < S
                )
            {
                return;
            }

            var s = S % 60;
            var M = S / 60;
            var m = M % 60;
            var H = M / 60;

            Console.WriteLine("{0}:{1}:{2}", H, m, s);
        }
    }
}