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)

public class Main { 
  public static void main(String[] args){
     int a = 60;
     int b = 3600;
     int S = new java.util.Scanner(System.in).nextInt(); //??????????§??????\???
     System.out.println( S/b +":" +  S%b/a+ ":"  +  S%b%a );
  }
}