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)

let content = '';

process.stdin.resume();
process.stdin.setEncoding('utf8');
process.stdin.on('data', buf => { content += buf; });
process.stdin.on('end', () => {
  const { hour, minute, sec } = parseTime(parseInt(content, 10));
  console.log([hour, minute, sec].join(':'));
});


const SEC_IN_HOUR = 60 * 60;
const parseTime = time => {
  const hour = Math.floor(time / SEC_IN_HOUR);
  const minute = Math.floor(time % SEC_IN_HOUR / 60);
  const sec = time % 60;
  return { hour, minute, sec };
};