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 JAVA (judge verdict: Accepted)

import java.io.*;
public class Main{
    public static void main(String[] args) throws IOException{
        int i = 1;
        int h,m,s;
        int S = 0;
        while(i>0){
            BufferedReader x = new BufferedReader(new InputStreamReader(System.in));
            S = Integer.parseInt(x.readLine());          
            if(S >= 0 && S < 86400 )
                i = -1;
         }
         h = S/3600;
         m = S%3600/60;
         s = S%3600%60;
         System.out.println(""+h+":"+m+":"+s+"");
    }
}