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 argv[])
    {
	Scanner scan = new Scanner(System.in);

	int num = scan.nextInt();
	int h=0,m=0,s=0;

	while(true)
	    {
		if( num - 3600 >= 0 )
		    {
			num = num-3600;
		    h++;
		    }
		else if( num - 60 >= 0 )
		    {
			num = num-60;
			m++;
		    }
		else {
		        if( num == 0) break;
			s++;
			num--;
		}
	    }
	System.out.println(h+":"+m+":"+s);

    }
}