class tod:  
  hour = None
  minute = None
  second = None
# tod specification ends here  

def outputTod(t):
  print("{:02}".format(t.hour), end=":")
  print("{:02}".format(t.minute), end=":")
  print("{:02}".format(t.second))
# outputTod ends here

#main program starts here
noon = tod()
noon.hour = 12
noon.minute = 0
noon.second = 0
outputTod(noon)