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 C# (judge verdict: Accepted)

using System;
class aoj
{
    static void Main()
    {
        int x = int.Parse(Console.ReadLine());
        int y, z, a;
        a = x % 60;
        z = ((x - a) / 60) % 60;
        y = (x - a - (z * 60)) / 3600;
        Console.WriteLine(y + ":" + z + ":" + a);
    }
}