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.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner sc = new Scanner(System.in);
		String line = sc.nextLine();

		int S = Integer.parseInt(line);

		int a = 0;
		int b = 0;
		int c = 0;

		if (S / 3600 > 0) {
			a = S / 3600;
		}

		if (S / 60 > 0)
			b = (S - S / 3600 * 3600) / 60;

		if (S > 0) {
			c = S - a * 3600 - b * 60;
		}

		System.out.println(a + ":" + b + ":" + c);

	}

}