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.
S = int(input())
h = S/3600
m = S- (h*3600)/60
sec = S- h*3600-m*60;

S = int(input())
h = int(S/3600)
m = int((S- h*3600)/60)
sec = S- h*3600-m*60;
print(str(h)+":"+str(m)+":"+str(sec))
