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())
print( s/3600, s%3600/60, s%3600/60, sep=":")
S = int( input())
print( S//3600, S%3600//60, S%3600%60, sep=":")