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;

class Tester
{
    static void Main(string[] args)
    {
        string x = Console.ReadLine();
        int a = int.Parse(x);
        int hour, minute, second;

            minute = a / 60;
            hour = minute / 60;
            minute = minute % 60;
            second = a % 60;

        Console.WriteLine("{0}:{1}:{2}", hour, minute, second);
    }
}