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)

import java.io.*;

public class Main {
	public static void main (String[] args) throws IOException
	{
		BufferedReader input = new BufferedReader (new InputStreamReader (System.in));
		
		String watchStr = input.readLine();
		
		int watch = Integer.parseInt(watchStr);
		
		int hour = 3600;
		
		int minute = 60;
		
		System.out.println(watch / hour + ":" + (watch % hour) / minute + ":" + ((watch % hour) % minute));
	}
}