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 Ruby (judge verdict: WA: Presentation Error)

#?§???§????????????????????????hour miniute s ??§??¨???

TIMER = 60

time = gets.to_i

hour = 0
miniute = 0


if time >= 3600 then
	hour = time/TIMER/TIMER
	temp = time%3600
else 
	temp = time
end

if temp > 59 then
	miniute = temp/TIMER
	temp = temp%TIMER
end

if time <= 59 then
	temp = time
end


second = temp

puts "#{hour.floor} : #{miniute.floor} : #{second}"