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: WA: Presentation Error)

using System;

class Wacth
{
	static void Main(){
		int time = int.Parse (Console.ReadLine ());



		int h = time / 3600;
		int h2 = time % 3600;

		int m = h2 / 60;
		int m2 = h2 % 60;

		int s = m2;

		Console.WriteLine (h + " : " + m + " : " + s);



	}
}