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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 IntroductionD
{
    static void Main()
    {
        var s = int.Parse( Console.ReadLine() );
        var h = s / 3600;
        var m = s % 3600 / 60;
        Console.WriteLine( "{0}:{1}:{2}", h, m, s % 60 );
    }
}