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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: Wrong Answer)

function main() {
	S = input[0];
	h = parseInt(S / 3600);
	m = parseInt(S / 60 % 60);
	s = parseInt(S % 60);

	msg = h + ':' + m + ':' + s;

	console.log(msg);
	console.log(input);
}

var input = "";

process.stdin.resume();
process.stdin.setEncoding("utf-8");
process.stdin.on("data", function(chunk) {
	input += chunk;
});

process.stdin.on("end", function() {
	input = input.split("\n");
	main();
})