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.

Constraints

* $0 \leq S \leq 86400$

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.

Example

Input

46979


Output

13:2:59
import java.util.Scanner;

class Main{
    public static void main(String[] args){
    	Scanner kb = new Scanner( System.in);
		
		int S = kb.nextInt();
		
		int h=S/3600;
		S=S%3600;
		int m=S/60;
		int s=S%60;
    	
        System.out.println( h+":"+m+":"+s );
    }
}