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)

(function() {
	var buf = require('fs').readFileSync('/dev/stdin');
	var S = 0, i, val;
	for (i in buf) {
		val = buf[i];
		if (val < 48) break;
		S = 10 * S + (val - 48);
	}
	var s = S % 60;
	var M = (S - s) / 60;
	var m = M % 60;
	var h = (M - m) / 60;
	console.log(h + ":" + m + ":" + s);
}) ();