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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: Wrong Answer)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;


class sample4{
    static void Main(string[] args){

            int a = int.Parse(Console.ReadLine());
            int b = a / 3600;
            int c = a % 3600;
            
            if( b > 60 || b < 0){
                Console.WriteLine("分が60未満の数字ではありません");
                Environment.Exit(0);
            }else if(c > 60 || b < 0){ 
                 Console.WriteLine("秒が60未満の数字ではありません");
                 Environment.Exit(0);
            }
            Console.WriteLine("{0}:{1}:{2}",b,c/60,c%60);
        }
    }