Problem:
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Watch

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 JAVA (judge verdict: Accepted)

/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		/*1 時間は 60 分、1 分は 60 秒なので、1 時間は 3600 秒になります。
		これらの定数 3600、60 を基に剰余算（%）や割り算を使って、
		秒の単位から時間、分の単位に変換してみましょう。 */
		Scanner sc = new Scanner(System.in);
		int watchstyle_hms  = sc.nextInt();
		int h = watchstyle_hms / 3600;
        int m = (watchstyle_hms % 3600) / 60;
        int s = ((watchstyle_hms % 3600) % 60);
        System.out.println(h+":"+m+":"+s);
	}
}