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 JAVA (judge verdict: Accepted)

import java.io.*;

class Main{
	public static void main(String args[]) throws IOException{
		BufferedReader br = 
			new BufferedReader(new InputStreamReader(System.in));

		String str =  br.readLine();

		int s = Integer.parseInt(str);

		int h = s / 3600;
		s = s - h * 3600;

		int m = s / 60;
		s = s - m * 60;

		System.out.println(h + ":" + m + ":" + s);
	}
}