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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)

var x = require('fs').readFileSync('/dev/stdin', 'utf8');
x=x-0;
var s=x%60;
var hm=(x-s)/60;
var m=hm%60;
var h=Math.floor(x/(60*60));
console.log(h+":"+m+":"+s);