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 JavaScript (judge verdict: Accepted)

'use strict';
(function(stdin) {
  var lines  = stdin.toString().split('\n');
  var result = (function(sec) {
    return [
        ~~(sec / (60 * 60))
        ,~~((sec % (60 * 60)) / 60)
        ,(sec % 60)
    ].join(':');
  }(parseInt(lines[0])
  ));
  console.log(result);
}(require('fs').readFileSync('/dev/stdin', 'utf8')));