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 PHP (judge verdict: Accepted)

<?php

fscanf(STDIN, "%d", $S);
printf("%s%s", convertStoHMS($S), PHP_EOL);

function convertStoHMS($seconds)
{
    $hour   = floor($seconds / 3600);
    $minute = floor($seconds / 60) % 60;
    $second = $seconds % 60;
    return sprintf("%d:%d:%d", $hour, $minute, $second);
}