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: Time Limit Exceeded)

#include<stdio.h>
int main(void)
{
	int S,h,m,s;
	do{
		scanf("%d",&S);
		}while(0>=S||S>86400);
	h=S/3600;
	m=S%3600/60;
	s=S%3600%60;
	printf("%d:%d:%d\n",h,m,s);
	return 0;
}