Problem:
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Watch

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;
class Watch{
	static void Main(){
		int S,M,h,m,s;
		S = int.Parse(Console.ReadLine());
		s = S%60;//秒単位の数字
		M = (S-s)/60;//分で時と分の数字を
		m = M%60;
		h = (M-m)/60;
		if(S<60) 
			Console.WriteLine("0:0:"+S);
		

		else if(S<3600)
			Console.WriteLine("0:"+m+":"+s);
		

		else
			Console.WriteLine(h+':'+m+':'+s);
		
	}
}