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;

namespace test
{
    class Program
    {
        static void Main(string[] args){
            string sec = Console.ReadLine();
            int b = int.Parse(sec);
            int a = b / 60;
            int s = b % 60;
            int m = a % 60;
            int h = a / 60;
            Console.WriteLine("{0}:{1}:{2}",h,m,s);
		}
    }
}