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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 Main(input) {
    var S = parseInt(input);
    var h = parseInt(S / 3600); //秒を時間へ　1時間=60分　60分=3600秒
    var x = S % 3600;
    var m = parseInt( x / 60);
    var z = x % 60;
    var s = z;

    var answer = h + ":" + m + ":" + s;
    console.log(answer);
}
// "実行する"ボタンを押した時に実行される関数 (デバッグ用)
function debug() {
    var input = document.getElementById("input").value;
    Main(input);
}

//* この行以降は編集しないでください（標準入出力から一度に読み込み、Mainを呼び出します）
Main(require("fs").readFileSync("/dev/stdin", "utf8"));