package Questions;
import java.util.Scanner;
public class Q1 {

	public static void main(String[] args) {
	Scanner input = new Scanner(System.in);
	System.out.println("Enter time in seconds: ");
	int seconds = input.nextInt();
	int hours = seconds / (60*60);
	seconds -= hours*60*60;
	int minutes = seconds/60;
	seconds -= minutes*60;
	String.format("%20d:%20d:%20d",hours, minutes, seconds);


	}

}