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 Scala (judge verdict: Accepted)

import java.util.Scanner
import java.util.concurrent.TimeUnit
 
object Main {
  def main (args: Array[String]) = {
    val in = new Scanner(System.in)
    val s = in.nextInt
    val hh = TimeUnit.SECONDS.toHours(s)
    val mm = TimeUnit.SECONDS.toMinutes(s) - TimeUnit.HOURS.toMinutes(hh)
    val ss = TimeUnit.SECONDS.toSeconds(s) - TimeUnit.HOURS.toSeconds(hh) - TimeUnit.MINUTES.toSeconds(mm)
 
    println("%d:%d:%d" format(hh, mm, ss))
  }
}